YOSHIKO OKADA
| Emeritus Professor etc. | Emeritus Professor |
- Profile:
Halobacterium Salinarum is a baterium which thrives in extremely high salt concentrations. In the cell membrane of Halobacterium Salinarum, photo-receptor protein that proceeds photosynthesis exists. This protein is called "bacteriorhodopsin", because it resembles rhodopsin, the visual pigment of animals. Similar to visual pigments, bacteriorhodopsin exhibits high quantum efficiency, i.e. it responds to a single phton in room temperature; it has visual information processing function such as edge detection and motion detection. Our major research area includes: development of optical sensors adapting bacteriorhodopsin; application to quantum optics; and nonlinear spectroscopical analysis of living Halobacterium Salinarum.
Researcher Information
Field Of Study
Career
- Apr. 2023 - Present
The University of Electro-Communications, Professor Emerita, Japan - Apr. 2019 - Mar. 2023
The University of Electro-Communications, 情報理工学研究科基盤理工学専攻/共同サステイナビリティ研究専攻, Professor, Japan - Jun. 2010 - Mar. 2023
National Institute of Information and Communications Technology, Advanced ICT Research Institute, Collaborative Researcher - 01 Apr. 2016 - 31 Mar. 2019
The University of Electro-Communications, Department of Engineering Science Graduate School of Informatics and Engineering, Associate Professor - 01 Apr. 2010 - 31 Mar. 2016
The University of Electro-Communications, Department of Engineering Science Graduate School of Informatics and Engineering, Associate Professor - 01 Oct. 2009 - 06 Jun. 2010
National Institute of Information and Communications Technology, Advanced ICT Research Centre, Collaborative Researcher - 01 Apr. 2007 - 31 Mar. 2010
The University of Electro-Communications, Graduate School of Engineering, Associate Professor - 01 Oct. 1991 - 31 Mar. 2007
The University of Electro-Communications, Department of Electronic Engineering, Research Associate - 01 Apr. 2005 - 31 Mar. 2006
RIKEN, Kawata Nanophotonics laboratory, Collaborative Researcher - 01 Oct. 2002 - 31 Mar. 2005
RIKEN, Nanophotonics laboratory, Collaborative Researcher - 01 Apr. 2000 - 31 Mar. 2003
RIKEN, Frontier Research System, Collaborative Researcher - Apr. 2002 - Aug. 2002
Commissariat a l’Energie Atomique Saclay, Visiting researcher, France - 01 Apr. 2001 - 31 Mar. 2002
RIKEN, Optocal Engneering laboratory, Temporary Researcher - Jan. 1996 - Jul. 1996
Laboratoire Charles Fabry de l'Institut d'Optique, Ministry of Education, Science and Culture Fellowship Program for Japanese Scholars and Researchers to Study Abroad, France - 01 Apr. 1990 - 30 Sep. 1991
RUKEN, Optical Engineering Laboratory, Special Postdoctoral Researcher - 01 Apr. 1984 - 31 Mar. 1987
Japan Women’s University, General education process, part-time assistant professor
Educational Background
Member History
- Jun. 2012 - Present
試問員, レーザー学会, Society - Sep. 2020 - Oct. 2020
電気電子分野の有識者会議委員, 内閣府の総合科学技術・イノベーション会議エビデンス事業, Government - Sep. 2019 - Apr. 2020
中間評価委員, JST 事業CREST研究領域中間評価委員会, Society - Apr. 2017 - Mar. 2018
副理事長, 国際光技術者検定協会, Society - Apr. 2013 - Mar. 2018
理事, 国際光技術者検定協会, Society - Sep. 2017 - Dec. 2017
追跡評価委員, JST 事業 CREST 追跡評価委員会, Society - Feb. 2013 - Apr. 2013
reviewer, Research Council KU Leuven - Apr. 2010 - Mar. 2013
理事, 日本フォトニクス協議会, Society - Apr. 2007 - Mar. 2013
コンテンポラリーオプティクス研究グループ代表, 日本光学会(応用物理学会), Society - Jun. 2011 - May 2012
評議員, レーザー学会, Society - Aug. 2010 - Sep. 2010
光みらい奨学金選考委員, 日本光学会(応用物理学会), Society - Aug. 2010
選考委員, 日本光学会 (応用物理学会) 光みらい奨学金選考委員会, Society - 2007
選考委員, 応用物理学会光学論文賞選考委員会, Society - 2006 - 2006
光学論文賞選考委員, 応用物理学会, Society - 2005 - 2006
代議員選考委員, 応用物理学会, Society - Aug. 2003 - Jul. 2005
International Associate Editor, The Japan Society of Applied Physics, Society - Apr. 2003 - Mar. 2005
「応用物理」編集委員, 応用物理学会, Society - 2000 - 2005
光波シンセシス研究グループ幹事, 日本光学会(応用物理学会), Society - 2003 - 2004
代議員, 応用物理学会, Society - 2002 - 2004
有機エレクトロニクス分科会幹事, 応用物理学会, Society - Dec. 2000 - Mar. 2003
光学」50 周年記念特別編集委員, 日本光学会 (応用物理学会), Society - Apr. 1998 - Mar. 2002
OPTICAL REVIEW 出版委員, 日本光学会 (応用物理学会), Society - 2001 - 2002
男女共同参画委員, 応用物理学会, Society - 1993 - 2001
コンテンポラリーオプティクス研究グループ幹事, 日本光学会(応用物理学会), Society - 1997 - 1999
光学分科会世話人, 応用物理学会, Society - Apr. 1994 - Mar. 1996
「光学」文献抄録委員, 日本光学会 (応用物理学会), Society - 1994 - 1996
幹事, 日本光学会(応用物理学会), Society - Dec. 1993 - Mar. 1995
OPTICAL REVIEW運営委員, 日本光学会 (応用物理学会), Society - 1992 - 1994
常任幹事庶務, 日本光学会(応用物理学会), Society
Research Activity Information
Paper
- Photosynthetic Protein-Based Retinal Ganglion Cell Receptive Fields for Detecting Edges and Brightness Illusions
Hikaru Fukazawa; Yoshiko Okada-Shudo
Corresponding, Nano Letters, American Chemical Society (ACS), 23, 23, 10983-10990, 04 Dec. 2023, Peer-reviwed
Scientific journal, English - Photosynthetic protein-based simple cell receptive fields for detection of Café Wall illusions
Shoko Kako-Ito; Yoshiko Okada-Shudo
Corresponding, Japanese Journal of Applied Physics, IOP Publishing, 62, 11, 112004-112004, 01 Nov. 2023, Peer-reviwed
Scientific journal, English - Biomaterial-Based Biomimetic Visual Sensors: Inkjet Patterning of Bacteriorhodopsin
Hiroyuki Hasegawa; Kairi Sakamoto; Kazuya Shomura; Yuka Sano; Katsuyuki Kasai; Shukichi Tanaka; Yoshiko Okada-Shudo; Akira Otomo
ACS Applied Materials & Interfaces, American Chemical Society (ACS), 15, 38, 45137-45145, 13 Sep. 2023, Peer-reviwed
Scientific journal, English - Benzodithiophene unit copolymerization to improve the stability of thiophene-based organic solar cells
H. Saito, T. Uchiyama, Y. Okada-Shudo, W. Mammo, T. P. J Kr$\ddot{u}$ger, V. Vohra, and N. A. Tegegne
J. Phys. D: Appl. Phys., IOP Publishing, 56, 044007, 2023, Peer-reviwed, True
Scientific journal, English - Protein-based Gabor filter for visual illusion
S. Kako; N. Fukunaga; Y. Okada-Shudo
Proceedings of SPIE, SPIE, 11998, 0F, 1-6, 07 Mar. 2022, Peer-reviwed
International conference proceedings, English - 光受容タンパク質を用いた視覚機能光検出器
岡田佳子
IEICE Technical Report, 電子情報通信学会, OME2021, 18, 35-40, Nov. 2021, Peer-reviwed, Invited
Symposium, Japanese - Spinning twin-mode generation in a bacteriorhodopsin suspension
K. Masuda; T. Yoshizawa; J. Lee; M. Shinada; Y. Okada-Shudo; T. Murata; K.Toyoda; K. Miyamoto; T. Omatsu
Proc. SPIE Optical Manipulation and Structured Materials Conference, SPIE, 11522, 1152209, Jun. 2020, Peer-reviwed
International conference proceedings, English - Effect of Alkyl Side Chain Length on Intra- and Intermolecular Interactions of Terthiophene- Isoindigo Copolymers
N. A. Tegegne, Z. Abdissa, W. Mammo, T. Uchiyama, Y. Okada-Shudo, F. Galeotti, W. Porzio, M. R. Andersson, D. Schlettwein, V. Vohra, and H. Schwoerer
J. Phys. Chem. C, American Chemical Society, 124, 18, 9644-9655, Apr. 2020, Peer-reviwed, True
Scientific journal, English - High Performance Organic Solar Cells Fabricated Using Recycled Transparent Conductive Substrates
Tomoaki Takada; Takayuki Uchiyama; Yoshiko Okada-Shudo; Katsuhito Hoshino; Ko Koizumi; Yuko Takeoka; Varun Vohra
ACS SUSTAINABLE CHEMISTRY & ENGINEERING, AMER CHEMICAL SOC, 8, 14, 5807-5814, Apr. 2020, Peer-reviwed
Scientific journal, English - Durable organic solar cells produced by in-situ encapsulation of an air-sensitive natural organic semiconductor by the fullerene derivative and the metal oxide layer
T. Uchiyama; T. Sano; Y. Okada-Shudo; V. Vohra
Journal of Materials Chemistry C, Royal Society of Chemistry, UK, 01-2020, 000379, Apr. 2020, Peer-reviwed
Scientific journal, English - Bacteriorhodopsin suspensions breaks spatial symmetry of an optical vortex field
K. Masuda; T. Yoshizawa; T. Akiyama; Y. Okada-Shudo; T. Murata; K. Toyoda; K. Miyamoto; T. Omatsu
Proc. of SPIE Organic Photonics + Electronics, SPIE, 11098, Sep. 2019, Peer-reviwed
International conference proceedings, English - Carotenoids as electron donor materials in semi-transparent organic solar cells
T. Uchiyama; V. Vohra; Y. Okada-Shudo
SPIE Security + Defence,, SPIE, 11165, 12, Sep. 2019, Peer-reviwed
International conference proceedings, English - Efficient ultrathin organic solar cells with sustainable β-carotene as electron donor
Vohra, Varun; Uchiyama, Takayuki; Inaba, Shusei; Okada-Shudo, Yoshiko
ACS Sustainable Chemistry＆Engineering, American Chemical Society, 7, 4, 4376-4381, 17 Jan. 2019, Peer-reviwed
Scientific journal, English - Fabrication of Gabor Filtering Photosensors Using the Printing Patterns of Bacteriorhodopsin
Katsuyuki Kasai; Hiroyuki Hasegawa; Yoshiko Okada-Shudo; Shukichi Tanaka; Akira Otomo
Optics InfoBase Conference Papers, OSA - The Optical Society, 2019, 2019
International conference proceedings, English - Controlling quantum interference in phase space with amplitude
Yinghong Xue; Tingyu Li; Katsuyuki Kasai; Yoshiko Okada-Shudo; Masayoshi Watanabe; Yun Zhang
SCIENTIFIC REPORTS, NATURE PUBLISHING GROUP, 7, 22291-1-22291-6, May 2017, Peer-reviwed
Scientific journal, English - Characteristics of pulse width for an enhanced second harmonic generation
Yun Zhang; Masaharu Hyodo; Yoshiko Okada-Shudo; Yun Zhu; Xiaoyang Wang; Yong Zhu; Guiling Wang; Chuangtian Chen; Shuntaro Watanabe; Masayoshi Watanabe
OPTICS COMMUNICATIONS, ELSEVIER SCIENCE BV, 387, 241-244, Mar. 2017, Peer-reviwed
Scientific journal, English - Directionally selective motion detection with bacteriorhodopsin patterned sensor
Yoshiko Okada-Shudo; Tokimasa Tanabe; Takayuki Mukai; Katsuyuki Kasai; Yun Zhang; Masayoshi Watanabe
SYNTHETIC METALS, ELSEVIER SCIENCE SA, 222, 249-254, Dec. 2016, Peer-reviwed
Scientific journal, English - Optical-flow sensing using a bacteriorhodopsin-based bipolar photosensor array
Katsuyuki Kasai; Yoshihiro Haruyama; Toshiki Yamada; Makoto Akiba; Takahiro Kaji; Yukihiro Tominari; Shukichi Tanaka; Yoshiko Okada-Shudo; Akira Otomo
Optics InfoBase Conference Papers, 2016
International conference proceedings - Low intensity noise and narrow line-width diode laser light at 540 nm
Lirong Wang; Ryo Tamaki; Katsuyuki Kasai; Yoshiko Okada-Shudo; Masayoshi Watanabe; Yun Zhang
LASER PHYSICS LETTERS, IOP PUBLISHING LTD, 12, 5, 055802, May 2015, Peer-reviwed
Scientific journal, English - Generation of tripartite quantum correlation among amplitude-squeezed beams by frequency doubling in a singly resonant cavity
Tingyu Li; Ryohei Mitazaki; Katsuyuki Kasai; Yoshiko Okada-Shudo; Masayoshi Watanabe; Yun Zhang
PHYSICAL REVIEW A, AMER PHYSICAL SOC, 91, 2, 023833, Feb. 2015, Peer-reviwed
Scientific journal, English - バクテリオロドプシンを用いたオプティカルフロー検出型視覚機能の構築
笠井克幸; 春山喜洋; 山田俊樹; 秋葉誠; 梶貴博; 富成征弘; 田中秀吉; 岡田佳子; 大友明
電子情報通信学会技術研究報告, 114, 33-37, 2014
Japanese - Protein-Based Photosensor for Biomimetic Sensing
K. Miyashita; T. Mukai; Y. Okada-Shudo
Proc. of International Workshop on Nano and Bio-Photonics (IWNBP), 2, 5, Nov. 2013
International conference proceedings, English - Biomimetic sensing by the photoreceptor membrane protein bacteriorhodopsin
Katsuyuki Kasai; Yoshihiro Haruyama; Toshiki Yamada; Makoto Akiba; Yukihiro Tominari; Takahiro Kaji; Toshifumi Terui; Ferdinand Peper; Yoshitada Katagiri; Shukichi Tanaka; Hiroshi Kikuchi; Yoshiko Okada-Shudo; Akira Otomo
Journal of the National Institute of Information and Communications Technology, 60, 1, 75-83, Oct. 2013
Scientific journal - Generation of quasi-cw deep ultraviolet light below 200 nm by an external cavity with a Brewster-input KBBF prism coupling device
Yun Zhang; Ryota Hoshi; Daichi Yamaguchi; Yoshiko Okada-Shudo; Masayoshi Watanabe; Masaharu Hyodo; Yun Zhu; Xiaoyang Wang; Yong Zhu; Guilin Wang; Chuangtian Chen; Teruto Kanai; Shuntaro Watanabe
Optics Communications, 295, 176-179, 15 May 2013, Peer-reviwed
Scientific journal, English - Generation of 1.2 W green light using a resonant cavity-enhanced second-harmonic process with a periodically poled KTiOPO4
Yun Zhang; Nobuyuki Hayashi; Hiroshi Matsumori; Ryohei Mitazaki; Yinghong Xue; Yoshiko Okada-Shudo; Masayoshi Watanabe; Katsuyuki Kasai
OPTICS COMMUNICATIONS, ELSEVIER SCIENCE BV, 294, 271-275, May 2013, Peer-reviwed
Scientific journal, English - Bacteriorhodopsin-based bipolar photosensor for biomimetic sensing
Katsuyuki Kasai; Yoshihiro Haruyama; Toshiki Yamada; Makoto Akiba; Yukihiro Tominari; Takahiro Kaji; Toshifumi Terui; Ferdinand Peper; Shukichi Tanaka; Yoshitada Katagiri; Hiroshi Kikuchi; Yoshiko Okada-Shudo; Akira Otomo
NANOBIOSYSTEMS: PROCESSING, CHARACTERIZATION, AND APPLICATIONS VI, SPIE-INT SOC OPTICAL ENGINEERING, 8817, 88170N-1-8, 2013, Peer-reviwed
International conference proceedings, English - Efficient phase noise suppression of an external-cavity diode-laser by optical filtering and resonant optical feedback
Y. Zhang; S. Miyakawa; K. Kasai; Y. Okada-Shudo; M. Watanabe
APPLIED PHYSICS B-LASERS AND OPTICS, SPRINGER, 108, 1, 39-42, Jul. 2012, Peer-reviwed
Scientific journal, English - Generation of Coherent Deep Ultraviolet Light below 200 nm by Fourth-harmonic a Ti:sapphire laser with high repetition
Y. Zhang; Y. Okada-Shudo; M. Watanabe; M. Hyodo; X. Wang; Y. Zhu; C. Chen; T. Kanai; S. Watanabe
Proc. of the 1st Advanced Lasers and Photon Sources (ALPS’12), 1, Apr. 2012, Peer-reviwed
International conference proceedings, English - Robot vision using biological pigments
Y. Okada-Shudo; D. Kawamoto; K. Kasai; Y. Zhang; M. Watanabe; K. Tanaka
SPIE Newsroom, doi:10.1117/2.1201212.004599, 2012, Peer-reviwed, Invited
Scientific journal, English - Generation of Quasi-CW Deep Ultraviolet Light below 200 nm by Two Successive Cavity Enhanced Second Harmonic Generators
Yun Zhang; Nobuyoshi Watanabe; Yoshiko Okada-Shudo; Masayoshi Watanabe; Masaharu Hyodo; Xiaoyang Wang; Yong Zhu; Chuangtian Chen; Teruto Kanai; Shuntaro Watanabe
JAPANESE JOURNAL OF APPLIED PHYSICS, JAPAN SOC APPLIED PHYSICS, 50, 4, 042703-1-4, Apr. 2011, Peer-reviwed
Scientific journal, English - Polarization Recording and Reconstruction in Bacteriorhodopsin Films
Y. Okada-Shudo
Nonlinear Opt. and Quantum. Opt., 42, 253-271, 2011, Peer-reviwed, Invited
Scientific journal, English - Bacteriorhodopsin-based photosensor applied to robot vision
Y. Okada-Shudo; K. Kasai; K. Tanaka; Y. Zhang; M. Watanabe; S. Tanaka
Proc. of second international workshop on advanced, nano- and biomaterials and their device applications, 46, Sep. 2010, Peer-reviwed
International conference proceedings, English - Bioelectroinic sensor applied to robot vision
Y. Okada-Shudo; K. Tanaka; K. Kasai; Y. Zhang; M. Watanabe; S. Tanaka
Proc. of SPIE Security + Defence, Optical Materials in Defence Systems Technology, 7838B, 43, Sep. 2010, Peer-reviwed
International conference proceedings, English - Photonic devices using differential photoresponse of bacteriorhodopsin
Y. Okada-Shudo; K. Kasai; S. Tanaka; Y. Zhang; M. Watanabe
Proc. of SPIE Optics + Photonics, NanoScience + Engineering, Nanobiosystems: Processing, Characterization, and Applications III, 7765, Aug. 2010, Peer-reviwed
International conference proceedings, English - Generation of quasi-cw VUV light with two successive cavity enhanced second harmonic generators
Y. Zhang; N. Watanabe; Y. Okada-Shudo; M. Watanabe; M. Hyodo; X. Wang; C. Chuangtian Chen; T. Kanai; S. Watanabe
Proc. of The 7th Asia-Pacific Laser Symposium, 00, May 2010, Peer-reviwed
International conference proceedings, English - Non-classical properties of phase conjugate light in bacteriorhodopsin
Y. Okada-Shudo; Y. Zhang; M. Watanabe
Proc. of SPIE OPTO Optoelectronic Materials, Devices and Applications, Organic Photonic Materials and Devices XII, 7599, 10, Jan. 2010, Peer-reviwed
International conference proceedings, English - Generation of quasi-continuous-wave vacuum-ultraviolet coherent light by fourth-harmonic of a Ti:sapphire laser with KBBF crystal
Yun Zhang; Yusuke Sato; Nobuyoshi Watanabe; Riskey Ananda; Yoshiko Okada-Shudo; Masayoshi Watanabe; Masaharu Hyodo; Xiaoyang Wang; Chuangtian Chen; Teruto Kanai; Shuntaro Watanabe
OPTICS EXPRESS, OPTICAL SOC AMER, 17, 10, 8119-8124, May 2009, Peer-reviwed
Scientific journal, English - Second-order Optical Properties of Bacterirhodopsin Films
Y. Okada-Shudo; S. Kawata
Proc. of The 9th International Conference on Frontiers of Polymers and Advanced Materials, 485, Jul. 2007, Peer-reviwed
International conference proceedings, English - Second harmonic movie/imaging of live bacteria and cell
Y. Okada-Shudo; S. Kawata
Proc. of SPIE, Nonlinear Optical Transmission and Multiphoton processes in Organics IV, 6333, Aug. 2006, Peer-reviwed
International conference proceedings, English - Optical Properties of Protein-embedded Photonic Crystal Slab
Y. Okada-Shudo
Abst. of 3rd International Conference on Photoresponsive Organics and Polymers, 80, Jan. 2006, Peer-reviwed
International conference proceedings, English - Optical Properties of protein-embedded Photonic Crystal Slab
Y. Okada-Shudo
Nonlinear Opt. Quantum Opt., 35, 175-181, 2006, Peer-reviwed
Scientific journal, English - Photoinduced transmission change in bacteriorhodopsin embedded photonic crystal slab
Y Okada-Shudo
JOURNAL OF NONLINEAR OPTICAL PHYSICS & MATERIALS, WORLD SCIENTIFIC PUBL CO PTE LTD, 13, 3-4, 491-495, Dec. 2004, Peer-reviwed
Scientific journal, English - Nonlinear transmission properties in bacteriorhodopsin embedded photonic crystal
Y Okada-Shudo; T Ishihara
NONLINEAR OPTICAL TRANSMISSION AND MULTIPHOTON PROCESSES IN ORGANICS, SPIE-INT SOC OPTICAL ENGINEERING, 5211, 48-52, 2003, Peer-reviwed
International conference proceedings, English - Photoinduced Transmission Change in Bacteriorhodopsin embedded Photonic Crystal Slab
Yoshiko Okada-Shudo; Teruya Ishihara
Proc. of 7th International Conference on Organic Nonlinear Optics, 291-292, 2003
International conference proceedings, English - Polarization holography with photoinduced anisotropy in bacteriorhodopsin
Y Okada-Shudo; JM Jonathan; G Roosen
OPTICAL ENGINEERING, SPIE-INT SOCIETY OPTICAL ENGINEERING, 41, 11, 2803-2808, Nov. 2002, Peer-reviwed
Scientific journal, English - Secure Holographic System with Polarization Encryption using Bacteriorhodopsin
Y. Okada-Shudo
Tech. Digest of "Organic Nanophotonics", NATO Advanced Research Workshop, 76, Aug. 2002, Peer-reviwed
International conference proceedings, English - Angular selectivity in nondestructive readout of hologram on photochromic protein bacteriorhodopsin
K Iwamoto; T Konishi; J Tanida; Y Okada-Shudo; Y Ichioka
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS, JAPAN SOC APPLIED PHYSICS, 41, 3B, 1864-1865, Mar. 2002, Peer-reviwed
Scientific journal, English - Demonstration of spatial light modulation by using reversible photochemical reaction of bacteriorhodopsin between ground state and K intermediate at room temperature
K Iwamoto; T Konishi; Y Okada-Shudo; K Itoh; Y Ichioka
OPTIK, URBAN & FISCHER VERLAG, 113, 7, 303-308, 2002, Peer-reviwed
Scientific journal, English - Intermolecular Change Transfer Multilayers for Nonlinear Optical Applications
F. Kajzar; Y. Okada-Shudo; C. Meritt; Z. Kafafi
Tech. Digest of "Organic Nanophotonics", NATO Advanced Research Workshop, 76, 2002, Peer-reviwed
International conference proceedings, English - Secure optical memory system with polarization encryption
XD Tan; O Matoba; Y Okada-Shudo; M Ide; T Shimura; K Kuroda
APPLIED OPTICS, OPTICAL SOC AMER, 40, 14, 2310-2315, May 2001, Peer-reviwed
Scientific journal, English - Second- and third-order non-linear optical properties of multilayered structures and composites of C-60 with electron donors
F Kajzar; Y Okada-Shudo; C Meritt; Z Kafafi
SYNTHETIC METALS, ELSEVIER SCIENCE SA, 117, 1-3, 189-193, Feb. 2001, Peer-reviwed
Scientific journal, English - Polarization holography with bacteriorhodopsin
Y Okada-Shudo
LINEAR AND NONLINEAR OPTICS OF ORGANIC MATERIALS, SPIE-INT SOC OPTICAL ENGINEERING, 4461, 138-145, 2001, Peer-reviwed, Invited
Scientific journal, English - Nonlinear Optical Functions in Nano-Scale Structures
Y. Okada-Shudo
Progress Report of Spatio-Temporal Functional Meterials Group, 1, Jul. 2000, Invited
Symposium, English - Optical Information Processing using Bacteriorhodopsin Films
Y. Okada-Shudo
Spatio-Temporal Functional Materials Group Forum, 1, May 2000, Invited
Research institution, English - Polarization Recording and Reconstruction in a Photoinduced Anisotropic Madium
Y. Okada-Shudo
Proc. of 5th International Conference on Organic Nonlinear Optics, E17, Davos, Mar. 2000
International conference proceedings, English - Implementation of pattern detection with polarization coding using bacteriorhodopsin film
K Shimizu; Y Takaki; H Ohzu
OPTICS IN COMPUTING 2000, SPIE-INT SOC OPTICAL ENGINEERING, 4089, 46-51, 2000, Peer-reviwed
International conference proceedings, English - Polarization Recording and Reconstruction in a Photoinduced Anisotropic Madium
Y. Okada-Shudo
Nonlinear Optics, 25, 333-338, 2000, Peer-reviwed
Scientific journal, English - Autocorrelation of picosecond pulses in bacteriorhodopsin film using light self-diffraction from intensity and polarization holograms
S Ashihara; K Kuroda; Y Okada-Shudo; K Jarasiunas
OPTICS COMMUNICATIONS, ELSEVIER SCIENCE BV, 165, 1-3, 83-89, Jul. 1999, Peer-reviwed
Scientific journal, English - Numerical analysis of real-time holography in bacteriorhodopsin
T Okamoto; T Fujiki; Y Okada; Yamaguchi, I
OPTICAL ENGINEERING, SPIE-INT SOCIETY OPTICAL ENGINEERING, 38, 1, 157-163, Jan. 1999, Peer-reviwed
Scientific journal, English - Second- and third-order nonlinear optical properties of multilayer and composite C-60-based thin films
F Kajzar; Y Okada-Shudo; C Meritt; Z Kafafi
SYNTHETIC METALS, ELSEVIER SCIENCE SA, 94, 1, 91-98, Apr. 1998, Peer-reviwed
Scientific journal, English - Noninear Optical Properties of Multilayered and Composites of C60 with Electron Ponors
Y. Okada-Shudo; F. Kajzar; C. D. Merritt; Z. H. Kafafi
Proc. of Materials for Nonlinear Optics, 11th Topical Meeting of The European Optical Society,, 1997, Peer-reviwed
International conference proceedings, English - Nonlinear optical properties of charge transfer molecular systems with C-60
F Kajzar; Y Okada-Shudo; C Meritt; Z Kafafi
FULLERENES AND PHOTONICS IV, SPIE-INT SOC OPTICAL ENGINEERING, 3142, 128-139, 1997, Peer-reviwed
International conference proceedings, English - Intensity fluctuation of a pulsed planar microcavity laser
T Enomoto; T Sasaki; K Sekiguchi; Y Okada; K Ujihara
JOURNAL OF APPLIED PHYSICS, AMER INST PHYSICS, 80, 12, 6595-6601, Dec. 1996, Peer-reviwed, Probability distributions of the peak output power from planar microcavity dye lasers with pulsed excitation have been studied experimentally. Two microcavities were used, one operating possibly with a single mode and the other possibly with a number of modes. These expectations are based on the relative magnitude of the mode radius and the pump beam radius. In the former cavity an exponential-like distribution was observed below threshold, which indicates single-mode operation. In the latter cavity a single-peaked distribution appeared even below threshold indicating multiple-mode operation. These results are, respectively, in qualitative agreement with theoretical distributions for steady state. That the observed pulse width is large enough to apply steady state distribution equation is shown by calculating the characteristic transient time for the intensity distribution. (C) 1996 American Institute of Physics.
Scientific journal, English - Real-time image processing using polarization discrimination of bacteriorhodopsin
Y Okada-Shudo; Yamaguchi, I; H Tomioka; H Sasabe
SYNTHETIC METALS, ELSEVIER SCIENCE SA, 81, 2-3, 147-149, Aug. 1996, Peer-reviwed
Scientific journal, English - Nonlinear optical properties of multilayered structures and composites of C-60 with electron donors
Y Okada-Shudo; F Kajzar; CD Merri; ZH Kafafi
FULLERENES AND PHOTONICS III, SPIE - INT SOC OPTICAL ENGINEERING, 2854, 52-62, 1996, Peer-reviwed, Second and third order nonlinear optical properties of C-60 based composites and multilayered structures with TPP and TPN are studied by transverse optical second and third harmonic generation, respectively. The results are compared with those obtained from pristine, photolyzed in vacuum and in oxygen atmosphere C-60 thin films. Second harmonic generation is observed from structures containing C-60 molecules. An enhancement of the quadratic susceptibility is observed from the multilayered structures. The third harmonic generation experiments show an enhancement of the cubic susceptibility from photolyzed C-60 thin films. No increase of chi((3)) in the multilayered structures or composites is observed. A slightly larger response is obtained with the multilayered thin films as compared to the composite material.
International conference proceedings, English - Nonconformity of planar microcavity dye lasers with Schawlow-Townes law
K Ujihara; T Enomoto; Y Okada-Shudo
PROGRESS IN CRYSTAL GROWTH AND CHARACTERIZATION OF MATERIALS, PERGAMON-ELSEVIER SCIENCE LTD, 33, 1-3, 179-182, 1996, Peer-reviwed
Scientific journal, English - Holographic Zone Plate in Bacteriorhodopsin Film for Wavelength Division Beam Splitter
Y. Okada-Shudo; F. Kajzar
Proc. of Third International Conference on Organic Nonlinear Optics, 139-140, 1996, Peer-reviwed
International conference proceedings, English - SPONTANEOUS AND STIMULATED-EMISSION BY EU-CHELATE IN A PLANAR MICROCAVITY
K EBINA; Y OKADA; A YAMASAKI; K UJIHARA
APPLIED PHYSICS LETTERS, AMER INST PHYSICS, 66, 21, 2783-2785, May 1995, Peer-reviwed
Scientific journal, English - Nonconformity of Planar Microcavity Pye Lasers with Schawlow-Townes Law
K. Ujihara; T. Enomoto; Y. Okada-Shudo
Proc, of Frontiers in Laser Physics and Spectroscopy, 49, 1995, Peer-reviwed
International conference proceedings, English - All-optical Logic Processor using Polarization Discrimination of Bacteriorhodopsin
Y. Okada-Shudo; H. Tomioka
Tech. Digest of Conference on 2nd Japan-France Joint Forum, 39, 1995, Peer-reviwed
International conference proceedings, English - Erasable Zone Plate in Bacteriorhodopsin Film for Photonic Switching
Y. Okada-Shudo; K. Ujihara; H. Tomioka; I. Yamaguchi
Tech. Digest of Conference on Laser and Electro-Optics Europe, 356-367, Sep. 1994, Peer-reviwed
International conference proceedings, English - バクテリオロドプシンを用いた光情報処理
日本学術振興会情報科学用有機材料第142委員会-第 4 期研究報告書-,, 214-220, 1994, Invited
Research society - OPTICAL APPLICATIONS OF BACTERIORHODOPSIN FILMS
Y Okada-Shudo
OPTICAL METHODS IN BIOMEDICAL AND ENVIRONMENTAL SCIENCES, ELSEVIER SCIENCE PUBL B V, 3, 247-250, 1994, Peer-reviwed
International conference proceedings, English - POLARIZATION PROPERTIES IN-PHASE CONJUGATION WITH BACTERIORHODOPSIN
Y OKADA; YAMAGUCHI, I; J OTOMO; H SASABE
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, JAPAN J APPLIED PHYSICS, 32, 9A, 3828-3832, Sep. 1993, Peer-reviwed
Scientific journal, English - Polarization Properties in Optical Phase Conjugation with Bacteriorhodopsin
岡田佳子; 山口一郎
Lead, 応用物理, 61, 9, 935-938, Sep. 1992, Peer-reviwed, Invited
Scientific journal, Japanese - Optical Phase Conjugation using Bacteriorhodopsin
Y. Okada; J. Otomo; I. Yamaguchi; H. Sasabe
Proc. of International Symposium on "Molecular Mechanisms of Photo-Reception and Transduction in the Bio-Information Systems, 32, Sep. 1992, Peer-reviwed
International conference proceedings, English - Optical Phase Conjugation using Purple Membrane
岡田佳子; 山口一郎; 大友純; 雀部博之
レーザー科学研究, 理化学研究所, 13, 151-153, 1991, Peer-reviwed
Research institution, Japanese - NONLINEAR DUAL LATTICE
M TODA; Y OKADA; S WATANABE
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, PHYSICAL SOCIETY JAPAN KIKAI-SHINKO BUILDING, 59, 12, 4279-4285, Dec. 1990, Peer-reviwed
Scientific journal, English - SOLITON IN A RANDOM SYSTEM
S ISHIWATA; Y OKADA; S WATANABE; H TANACA
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, PHYSICAL SOCIETY JAPAN KIKAI-SHINKO BUILDING, 59, 9, 3029-3032, Sep. 1990, Peer-reviwed
Scientific journal, English - SOLITARY WAVE IN PERIODIC NONLINEAR LATTICE
Y OKADA; S WATANABE; H TANACA
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, PHYSICAL SOCIETY JAPAN KIKAI-SHINKO BUILDING, 59, 8, 2647-2658, Aug. 1990, Peer-reviwed
Scientific journal, English - Solitary Wave in Periodic Nonlinear Lattice
Y. Okada; S. Watanabe; H. Tanaca
J. Phys. Soc. Jpn., 59, 2649-2660, 1990, Peer-reviwed
Scientific journal, English - FIBER-OPTIC PULSE DELAY USING COMPOSITE ZONE PLATES FOR VERY FAST OPTOELECTRONICS
Y OKADA; K KODATE; H KAMIYAMA; T KAMIYA
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, JAPAN J APPLIED PHYSICS, 27, 8, 1440-1444, Aug. 1988, Peer-reviwed
Scientific journal, English - Solitary Wave in Periodic Nonlinear Lattice
岡田佳子; 渡辺慎介
京都大学数理解析研究所講究録, 京都大学, 650, 46-57, 1988, Peer-reviwed
Research institution, Japanese - Fiber-Optic Delay Circuit using Micro Fresnel Zone Plates
Y. Okada; X. Feng; K. Kodate; T. Kamiya
Proc. of Microoptics Conference, 146-149, Oct. 1987, Peer-reviwed
International conference proceedings, English - Micro Fresnel Zone Plate for Optical Fiber Interferency
岡田佳子; 小館香椎子
日本女子大学家政学部紀要, Japan Women's University, 34, 157-162, 1987
Research institution, Japanese - Low Bit-Error-Rate Optical Read-Only Memory Card Reader
F. Kimura; S. Izawa; S. Takahashi
Proceedings of SPIE - The International Society for Optical Engineering, 813, 415-416, 01 Jan. 1987, Peer-reviwed
Scientific journal, English - Micro Fresnel Zone Plate for Pulse Pelay Circuit
岡田佳子; 小舘香椎子; 神谷武
光学, 16, 8, 364, 1987, Peer-reviwed
Scientific journal, English - A BLAZED GRATING FABRICATED BY SYNCHROTRON RADIATION LITHOGRAPHY
K KODATE; Y OKADA; T KAMIYA
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS, JAPAN J APPLIED PHYSICS, 25, 10, L822-L823, Oct. 1986, Peer-reviwed
Scientific journal, English - Composite Zone Plate Elements for Opto-Electron : C Integrated Circuits
K. Kodate; Y. Okada; T. Iida; T. Kamiya
Proc. of First Optoelectronic Conference, 66-67, Jul. 1986, Peer-reviwed
International conference proceedings, English - FOCUSING CHARACTERISTICS OF HIGH-EFFICIENCY FRESNEL ZONE PLATE FABRICATED BY DEEP ULTRAVIOLET LITHOGRAPHY
K KODATE; T KAMIYA; Y OKADA; H TAKENAKA
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, JAPAN J APPLIED PHYSICS, 25, 2, 223-227, Feb. 1986, Peer-reviwed
Scientific journal, English - Focusing Characteristics of High-Efficiency Circular Fresnel Zone Plate
岡田佳子; 小館香椎子; 竹中はる子
日本女子大学家政学部紀要, Japan Women's University, 33, 179-184, 1986
Research institution, Japanese - High-efficiency Fresnel Zone Plate for Mivrooptics by Deep UV Lithegraphy
K. Kodate; Y. Okada; T. Kamiya
Tech. Digest of Conference on Laser and Electro-Optics, 196-198, May 1985, Peer-reviwed
International conference proceedings, English - RESONANT RAMAN-SCATTERING IN ZRS3 AND ZRSE3
S KURITA; Y OKADA; M TANAKA; F LEVY
HELVETICA PHYSICA ACTA, BIRKHAUSER VERLAG AG, 58, 2-3, 321-328, 1985, Peer-reviwed
Scientific journal, English - RESONANCE RAMAN AND LUMINESCENCE STUDIES ON THE QUASI-ONE-DIMENSIONAL CRYSTALS OF [PT(EN)2][PT(EN)2CL2](CLO4)4
M TANAKA; S KURITA; Y OKADA; T KOJIMA; Y YAMADA
CHEMICAL PHYSICS, ELSEVIER SCIENCE BV, 96, 2, 343-348, 1985, Peer-reviwed
Scientific journal, English - 深紫外光を用いた荷効率回折格子型微小光学素子の作成
小舘香椎子; 岡田佳子; 神谷武志
光学, 14, 4, 296, 1985, Peer-reviwed
Scientific journal, Japanese
MISC
- 一枚の写真
岡田佳子
Feb. 1995, O plus E, 183, Japanese, Others - 光受容性タンパク質バクテリオロドプシンとは
岡田佳子
1995, パリティ, 10, 26-37, Japanese, Introduction other - Optical Information Processing using Bacteriorhodopsin
岡田佳子
1993, オプトロニクス, 2, 57-61, Japanese, Introduction other - Holographic Recording in Organic Bio-Materials
岡田佳子
1993, 写真工業, 2, 112-115, Japanese, Introduction other - Optical Information Processing using Bio-Materials
岡田佳子
1993, 光アライアンス, 10, 46-47, Japanese, Introduction other - 画像処理で活躍する女性たち
岡田佳子
1992, 画像ラボ, 35, 10, 43, Japanese, Introduction other - Optical Delay Circuits using Composite Zone Plate
岡田佳子
応用物理学会分科会日本光学会, 1989, 光学, 18, 10, 530-535, Japanese, Invited, Introduction scientific journal, 0389-6625, 40001174502, AN00080324
Books and other publications
Lectures, oral presentations, etc.
- Photosynthetic Protein-based Simple Cell’s Receptive Fields for Detecting Orientation Illusions
S. Kako-Ito; Y. Okada-Shudo
English, International Conference on Materials Science, En- gineerings & technology 2023, Materials Innovations, Applications and Advancements, Peer-reviewed
08 Sep. 2023
07 Sep. 2023- 09 Sep. 2023 - A large size position sensitive detector based on photoreceptor protein and conductive polymer
Y. Okada-Shudo; A. Shirota
Invited oral presentation, English, SPIE Sensors + Imaging, Advanced Materials, Biomaterials, and Manufacturing Technologies for Security and Defence, Invited, Peer-reviewed
04 Sep. 2023
03 Sep. 2023- 05 Sep. 2023 - Detection of the Cafe Wall illusion using protein-based artificial receptive fields
S. Itoh-Kako; Y. Okada-Shudo
Invited oral presentation, English, 6th International Workshops on Nano and Bio-Photonics (IWNBP), Invited, ENS de Lyon, CNRS, Évian-les-Bains, France, https://iwnbp2022.sciencesconf.org, International conference
27 Sep. 2022 - Molecular Electronics and Image Engineering Applications of Photosynthetic Protein Bacteriorhodopsin
Y. Okada-Shudo
Keynote oral presentation, English, 22nd Romanian International Conference on Chemistry and Chemical Engineering, Invited, Foundation "C. D. NENITESCU", Sinaia, ROMANIA, Peer-reviewed, https://riccce22.chimie.upb.ro, International conference
08 Sep. 2022 - Photoelectrochemical properties of protein-based photodetec- tors
K. Takano; Y. Okada-Shudo
Poster presentation, English, Optics & Photonics International Congress 2022, Information Photonics, OPTICS & PHOTONICS International Congress, Yokohama, International conference
21 Apr. 2022 - Photovoltaic cells based on bacteriorhodopsin and PEDOT: PSS
A. Shirota; K. Tosa; A. Kuriyama; Y. Okada-Shudo
Poster presentation, English, Optics & Photonics International Congress 2022, Information Photonics, Optics & Photonics International Congress, Yokohama, International conference
21 Apr. 2022 - Protein-based Gabor filter for visual illusion
S. Kako; N. Fukunaga; Y. Okada-Shudo
Poster presentation, English, SPIE Photonics West, Organic Photonic Materials and Devices XXIV, SPIE, San Francisco, International conference
26 Jan. 2022 - 光受容タンパク質を用いた視覚機能光検出器
岡田佳子
Invited oral presentation, Japanese, 電子情報通信学会有機エレクトロニクス研究会, Invited, 電子情報通信学会EE, CPM, OME, https://www.ieice.org/ken/program/index.php?tgid=OME, Domestic conference
19 Nov. 2021 - A large size position sensitive detector based on photosynthetic protein
Yoshiko Okada-Shudo; Kanako Kawahara
Invited oral presentation, English, SPIE Security + Defence, Invited, SPIE, online, Peer-reviewed, International conference
13 Sep. 2021 - Spinning twin-mode generation in a bacteriorhodopsin suspension
K. Masuda; T. Yoshizawa; J. Lee; M. Shinada; Y. Okada-Shudo; T. Murata; K.Toyoda; K. Miyamoto; T. Omatsu
Oral presentation, English, SPIE Optical Manipulation and Structured Materials Conference, SPIE, Yokohama, Japan, International conference
15 Jun. 2020 - 光受容タンパク質を用いた視覚神経細胞素子による情報処理
岡田佳子
Invited oral presentation, Japanese, 未来ICTシンポジウム｢自然知｣シンポジウム, Invited, NICT, 東京ビックサイト, Domestic conference
29 Jan. 2020 - Long-lasting organic solar cells using natural carotenoids as electron donors
V. Vohra; T. Uchiyama; Y. Okada-Shudo
Invited oral presentation, English, 5th International Workshop on Nano and Bio-Photonics (IWNBP), Invited, Ecole Normale Superieure de Lyon, St Nectaire, France, International conference
24 Sep. 2019 - Carotenoids as electron donor materials in semi-transparent organic solar cells
T. Uchiyama; V. Vohra; Y. Okada-Shudo
Poster presentation, English, SPIE Security + Defence, Optical Materials and Biomaterials in Security and Defence Systems Technology XVI, SPIE, Strasbourg, France, International conference
12 Sep. 2019 - Protein based DOG filter for image processing and image illusion
Y. Okada-Shudo; H. Fukazawa
Invited oral presentation, English, SPIE Security + Defence, Optical Materials and Biomaterials in Security and Defence Systems Technology XVI, Invited, SPIE, Strasbourg, France, International conference
12 Sep. 2019 - Bacteriorhodopsin suspensions breaks spatial symmetry of an optical vortex field
K. Masuda; T. Yoshizawa; T. Akiyama; Y. Okada-Shudo; T. Murata; K. Toyoda; K. Miyamoto; T. Omatsu
Oral presentation, English, SPIE Organic Photonics + Electronics, Molecular and Nano Machines II, SPIE, San Diego, US, International conference
10 Sep. 2019 - Helical biomaterial breaks spatial symmetry of helical light field
K. Masuda; T; Yoshizawa; T. Akiyama; Y. Okada-Shudo; T. Murata; K. Toyoda; K. Miyamoto; T. Omatsu
Oral presentation, English, Optical Manipulation and Structured Materials Conference (OMC2019), OPTICS & PHOTONICS International conference, Pacifico Yokohama, Japan, International conference
23 Jun. 2019 - Carotenoids as Electron Donor Materials in Organic Solar Cell Active Layers
T. Uchiyama; V. Vohra; Y. Okada-Shudo
Invited oral presentation, English, International Conference on Fronttiers and Advanced Materials, Invited, University of Malaya, Penang, MALAYSIA, International conference
17 Jun. 2019 - Natural β-carotene as electron donor materials in see-through organic solar cells
T. Uchiyamai; T. Sano; V. Vohra; Y. Okada-Shudo
Poster presentation, English, Optics & Photonics International Congress 2019, International Conference on Nano-photonics and Nano-optoelectronics 2019, OPTICS & PHOTONICS International conference, Pacifico Yokohama, Japan, International conference
25 Apr. 2019 - Bacteriorhodopsin based binarized DOG filter for image processing
H. Fukazawa; K. Funaki; K. Kasai; Y. Okada-Shudo
Poster presentation, English, Optics & Photonics International Congress 2019, Information Photonics 2019, OPTICS & PHOTONICS International conference, Pacifico Yokohama, Japan, International conference
24 Apr. 2019 - Electric equivalent circuit of wet-type protein-based photodetectors with the visual function
S. Osawa; A; Aiuchi, T; Uchiyamai; K. Kasai; Y. Okada-Shudo
Poster presentation, English, Optics & Photonics International Congress 2019, Information Photonics 2019, OPTICS & PHOTONICS International conference, Pacifico Yokohama, Japan, International conference
24 Apr. 2019 - Temporal and frequency response properties of bacteriorhodopsin-based photodetectors
S. Osawa; K, Kasai; Y. Okada-Shudo
Poster presentation, English, SPIE Security + Defence, Optical Materials and Biomaterials in security and Defence Systems Technology, Berlin, Germany, International conference
12 Sep. 2018 - Spatio-temporal frequency characteristics of a protein-based DOG filter
Y. Okada-Shudo
Invited oral presentation, English, SPIE Security + Defence, Invited, SPIE, Berlin, Germany, International conference
10 Sep. 2018 - Photosynthetic Protein-Based Visual Receptive Fields for Image Processing
Y. Okada-Shudo
Invited oral presentation, English, Material Research Society (MRS) Spring Meeting 2018, Invited, Material Research Society, Phoenix, US, International conference
05 Apr. 2018 - A Large Size Position Sensitive Detector Based on Photosyn- thetic Protein
S. Omata; Y. Okada-Shudo
Poster presentation, English, International Symposium on Novel Energy Nanomaterials, Catalysts and Surfaces for Future Earth, International conference
Oct. 2017 - Organic Photodetectors Combining PEDOT: PSS with Bacteri- orhodopsin
Y. Uno; Y. Okada-Shudo
Poster presentation, English, International Symposium on Novel Energy Nanomaterials, Cat- alysts and Surfaces for Future Earth, International conference
Oct. 2017 - Temporal and Frequency Response Characteristics of Protein- based Photodetector
S. Osawa; Y. Okada-Shudo
Poster presentation, English, International Symposium on Novel Energy Nanomaterials, Cat- alysts and Surfaces for Future Earth, International conference
Oct. 2017 - Temporal response properties of bacteriorhodopsin- conductive polymer photodetectors
Yasuhiro Uno; Yoshiko Okada-Shudo
Invited oral presentation, English, 4th International Workshop on Nano and Bio-Photonics, Invited, Ecole Normale Supérieure de Lyon, and Excilight European Project, Vogüé, France, https://iwnbp2017.sciencesconf.org, International conference
24 Sep. 2017 - Protein-based visual receptive fields for image processing
Y. Okada-Shudo
Keynote oral presentation, English, SPIE Security + Defence, Invited, SPIE, Warsaw, Poland, International conference
11 Sep. 2017 - 光受容タンパク質バクテリオロドプシンを用いた視覚情報処理型センサ
笠井克幸; 長谷川裕之; 山田俊樹; 秋葉誠; 富成征弘; 梶貴博; 田中秀吉; 岡田佳子; 大友明
Invited oral presentation, Japanese, 電気情報通信学会2017年ソサイエティ大会, Invited, 電気情報通信学会, 東京都市大学世田谷, Domestic conference
Sep. 2017 - Inkjet Printing of Bacteriorhodopsin for Biomimetic Photonic Devices
H. Hasegawa; K. Kasai; Y. Tominari; T. Kaji; T. Yamada; S. Tanaka; Y. Okada-Shudo; A. Otomo
Oral presentation, English, 12th Interna- tional Conference on Nano-Molecular Electronics (ICNME 2016), International conference
Dec. 2016 - Optical-Flow Sensing Characteristics of a Bacteriorhodopsin-Based Bipolar Photosensor Array
K. Kasai; H. Hasegawa; T. Yamada; M. Akiba; Y. Tominari; T. Kaji; S. Tanaka; A. Otomo; Y. Okada-Shudo
Oral presentation, English, 12th International Conference on Nano-Molecular Electronics (ICNME 2016), International conference
Dec. 2016 - Temporal response of protein-based artificial ganglion cell receptive field
Y. Okada-Shudo
Invited oral presentation, English, SPIE Security + Defence, Invited, SPIE, Edinburgh, United Kingdom, International conference
Sep. 2016 - Optical-Flow Sensing Using a Bacteriorhodopsin-based Bipolar Photosensor Array
K. Kasai; Y. Haruyama; T. Yamada; M. Akiba; T. Kaji; Y. Tominari; S. Tanaka; Y. Okada-Shudo; A. Otomo
Oral presentation, English, OSA Advanced Photonics Congress, Vancouver, Canada, International conference
Jul. 2016 - Protein-based finger motion sensor
Y. Okada-Shudo
Invited oral presentation, English, 11th IUPAC International Conference on Novel Materials and their Synthesis (NMS-XI), Invited, IUPAC, Qinhuangdao, China, International conference
13 Oct. 2015 - Image processing by protein-based visual receptive fields
Y. Okada-Shudo
Invited oral presentation, English, SPIE Security + Defence, Optical Materials and Biomaterials in security and Defence Systems Technology, Invited, SPIE, Toulouse, France, International conference
23 Sep. 2015 - Novel Optical-Flow Sensing Method Using Bacteriorhodopsin Wildtype and Its Variant - Insect-Inspired Motion Detection -
K. Kasai; Y. Haruyama; T. Yamada; M. Akiba; T. Kaji; Y. Tominari; S. Tanaka; A. Otomo; Y. Okada-Shudo
Oral presentation, English, 11th International Conference on Nano-Molecular Electronics, Kobe, Japan, International conference
Dec. 2014 - Artificial receptive field using bacteriorhodopsin films
Y. Okada-Shudo
Invited oral presentation, English, Advanced Nano- and Biomaterials and Their Device Applications, organized jointly with French-Romanian Topical Meeting on Nano and Biomaterials, Iasi , Romania, Invited, POLITEHNICA University of Bucharest et Ecole Normale Superieure, Iasi , Romania, International conference
Sep. 2014 - Protein-based artificial receptive field
Y. Okada-Shudo
Invited oral presentation, English, SPIE Security + Defence, Amsterdam, Netherlands, Invited, SPIE, Amsterdam, Netherlands,, International conference
Sep. 2014 - Bioelectronic photosensor for speed and direction sensing
Y. Okada-Shudo
Invited oral presentation, English, 12th International Conference on Frontiers of Polymers and Advanced Materials, Auckland, New Zealand, Invited, ICFPAM, Auckland, New Zealand, International conference
Dec. 2013 - Protein-Based Photosensor for Biomimetic Sens- ing
K. Miyashita; T. Mukai; Y. Okada-Shudo
Poster presentation, English, International Workshop on Nano and Bio-Photonics (IWNBP), CNRS France, Biarritz, France, International conference
Nov. 2013 - Speed and Direction Sensing with Patterned Bio-Electronic Photosensors
Y. Okada-Shudo
Invited oral presentation, English, International Workshop on Nano and Bio-Photonics (IWNBP), Biarritz, France, Invited, IWNBP, Biarritz, France, International conference
Nov. 2013 - Speed and direction sensing with a patterned bacteriorhodopsin film
Y. Okada-Shudo
Invited oral presentation, English, SPIE Security + Defence, Dresden, Germany, Invited, SPIE, Dresden, Germany, International conference
Sep. 2013 - Bacteriorhodopsin-based bipolar photosensor for biomimetic sensing
K. Kasai; Y. Haruyama; T. Yamada; M. Akiba; Y. Tominari; T. Kaji; T. Terui; F. Peper; S. Tanaka; Y. Katagiri; H. Kikuchi; Y. Okada-Shudo; A. Otomo
Invited oral presentation, English, SPIE Optics + Photonics 2013, San Diego, USA, Invited, SPIE, San Diego, USA, International conference
Aug. 2013 - Biomimetic Optical Sensing Using Bacteriorhodopsin Thin Films - From Insect Mimetics towards Robot Vision
K. Kasai; Y. Haruyama; T. Yamada; M. Akiba; Y. Tominari; T. Kaji; T. Terui; F. Peper; S. Tanaka; Y. Katagiri; A. Otomo, H; Kikuchi; Y. Okada-Shudo
Invited oral presentation, English, 10th International Conference on Nano-Molecular Electronics (ICNME), Awaji, Japan, Invited, ICNME, Awaji, Japan, International conference
Dec. 2012 - Protein-Based Photosensor for Robot Vision
Y. Okada-Shudo; K. Kasai; Y. Zhang; M. Watanabe
Invited oral presentation, English, 8th IUPAC International Conference on Novel Materials and their Synthesis (NMS-VIII), Xi'An, China, Invited, Fudan University & Xi'An University, Xi'An, China, International conference
Oct. 2012 - Nonlinear spectroscopic study of single cell of Halobacterium salinarum
Y. Okada-Shudo
Invited oral presentation, English, The third Workshop on Advanced Nano and Biomaterials and their applications, Timisoara, Romania, Invited, CNRS, France, Timisoara, Romania, International conference
Sep. 2012 - Direction sensing with a patterned bacteriorhodopsin film
Y. Okada-Shudo
Invited oral presentation, English, SPIE Security + Defence, Edinburgh, UK, Invited, SPIE, Edinburgh, UK, International conference
Sep. 2012 - Multilayered photosensor with bacteriorhodopsin film
Y. Okada-Shudo
Invited oral presentation, English, SPIE Optics + Photonics, Nanobiosystems Nanobiosystems: Processing, Characterization, and Applications V, San Diego, USA, Invited, SPIE, San Diego, USA, International conference
Aug. 2012 - Generation of Coherent Deep Ultraviolet Light below 200 nm by Fourth-harmonic a Ti:sapphire laser with high repetition
Y. Zhang; Y. Okada-Shudo; M. Watanabe; M. Hyodo; X. Wang; Y. Zhu; C. Chen; T. Kanai; S. Watanabe
Oral presentation, English, The 1st Advanced Lasers and Photon Sources (ALPS ’ 12), International conference
Apr. 2012 - Analysis of single cell Halobacterium Salinarum by resonance Raman imaging
Nur Najwa; Yasuaki Kumamoto; Atsushi Taguchi; Kawata Satoshi; Yoshiko Okada-Shudo
Oral presentation, English, Spectroscopical Society of Japan
Dec. 2011 - Nonlinear optical imaging of single cells of a pigmented bacterium
Y. Okada-Shudo; S. Kawata
Invited oral presentation, English, International Workshop on Nano and Bio-Photonics (IWNBP), St Germain au Mont d’Or, France, Invited, CNRS, St Germain au Mont d’Or, France, International conference
Oct. 2011 - Bioelectronic photosensor for robot vision
Y. Okada-Shudo; K. Kasai; K. Tanaka; Y. Zhang; M. Watanabe
Invited oral presentation, English, 11th International Conference on Frontiers of Polymers and Advanced Materials, Pretoria, South Africa, Invited, CSIR, Pretoria, South Africa, International conference
May 2011 - Time and frequency response characteristics of a bacteriorhodopsin photosensor
K. Kasai; Y. Haruyama; H. Kikuchi; T. Terui; Y. Okada-Shudo; A. Otomo
Oral presentation, English, 9th International Con- ference on Nano-Molecular Electronics (ICNME 2010), Kobe, Japan, International conference
Dec. 2010 - Bioelectroinic sensor applied to robot vision
Y. Okada-Shudo; K. Tanaka; K. Kasai; Y. Zhang; M. Watanabe; S. Tanaka
Invited oral presentation, English, Security + Defence, Optical Materials in Defence Systems Technology, Toulouse, France, Invited, SPIE, Toulouse, France, International conference
Sep. 2010 - Bacteriorhodopsin-based photosensor applied to robot vision
Y. Okada-Shudo; K. Kasai; K. Tanaka; Y. Zhang; M. Watanabe; S. Tanaka
Invited oral presentation, English, Second international workshop on advanced, nano- and biomaterials and their device applications, Sibiu, Romania, Invited, National Consultancy Centre for Environmental Protection, Univ. Politehnica Bucharest, Sibiu, Romania, International conference
Sep. 2010 - Photonic devices using differential photoresponse of bacteriorhodopsin
Y. Okada-Shudo; K. Kasai; S. Tanaka; Y. Zhang; M. Watanabe
Invited oral presentation, English, SPIE Optics + Photonics, NanoScience + Engineering, Nanobiosystems: Processing, Characterization, and Applications III, San Diego, USA, Invited, SPIE, San Diego, USA, International conference
Aug. 2010 - Generation of quasi-cw VUV light with two successive cavity enhanced second harmonic generators
Y. Zhang; N. Watanabe; Y. Okada-Shudo; M. Watanabe; M. Hyodo; X. Wang; C. Chuangtian Chen; T. Kanai; S. Watanabe
Oral presentation, English, The 7th Asia-Pacific Laser Symposium, Jeju island, Koria, International conference
May 2010 - Non-classical properties of phase conjugate light in bacteriorhodopsin
Y. Okada-Shudo; Y. Zhang; M. Watanabe
Invited oral presentation, English, OPTO Optoelectronic Materials, Devices and Applications, Organic Photonic Materials and Devices XII, San Francisco, USA, Invited, SPIE, San Francisco, USA, International conference
Jan. 2010 - Second-order Optical Properties of bacteriophodopsin Films
Y. Okada-Shudo; S. Kawata
Oral presentation, English, IX International Conference on Frontiers of Polymers and Advanced Materials, Cracow, Poland, International conference
Jul. 2007 - Second harmonic movie/imaging of live bacteria and cells
Y. Okada-Shudo; S. Kawata
Invited oral presentation, English, SPIE, Nonlinear Optical Transmission and Multiphoton Processes in Organics IV, San Diego, USA, Invited, SPIE, San Diego, USA, International conference
Aug. 2006 - Optical Properties of Protein-embedded Photonic Crystal Slab
Y. Okada-Shudo
Oral presentation, English, 3rd International Conference on Photoresponsive Organics and Polymers, Val Thorens, France, International conference
Jan. 2006 - Nonlinear Transmission Properties in Bacteriorhodopsin embedded Photonic Crystal
Yoshiko Okada-Shudo
Public symposium, English, 7 eme Conference Thematique de la CEA-LETI, Materiaux pour L'Optique Non-Lineaire, CEA-LETI, Saclay, France
Dec. 2004 - Photoinduced Transmission Change in Bacteriorhodopsin embedded Photonic Crystal Slab
Y. Okada-Shudo; T. Ishihara
Oral presentation, English, 7th International Conference on Organic Nonlinear Optics, ICONO, Sorak, Koria, International conference
Nov. 2003 - Key Nanotechnology III: Optics
Y. Okada-Shudo
Keynote oral presentation, English, Second International Conference on Molecular Electronics and Bioelectronics(M&BE2), Tokyo, Japan, Invited, JSAP, Tokyo, Japan, International conference
Mar. 2003 - Secure Holographic System with Pplarization Encryption using Bacteri- orhodopsin
Y. Okada-Shudo
Oral presentation, English, NATO Advanced Research Workshop, NATO, Aix-en-Provence, France, International conference
Aug. 2002 - Intermolecular Change Transfer Multilayers for Nonlinear Optical Applications
F. Kajzar; Y. Okada-Shudo; C. Meritt; Z. Kafafi
Invited oral presentation, English, NATO Advanced Research Workshop "Organic Nanophotonics", Aix-en-Provence, France, Invited, NATO, Aix-en-Provence, France, International conference
Aug. 2002 - Polarization holography with bacteriorhodopsin
Y. Okada-Shudo
Invited oral presentation, English, SPIE, Linear and Non-linear Optics of Organic Materials, San Diego, USA, Invited, SPIE, San Diego, USA, International conference
Jul. 2001 - Nonlinear Optical Functions in Nano-Scale Structures
Y. Okada-Shudo
Invited oral presentation, English, Progress Report of Spatio-Temporal Functional Materials Group, Invited, RIKEN, Domestic conference
Jul. 2000 - Optical Information Processing using Bacteriorhodopsin Films
Y. Okada-Shudo
Invited oral presentation, English, Spatio-Temporal Functional Materials Group Forum, Invited, RIKEN, Wako, Domestic conference
May 2000 - Polarization Recording and Reconstruction in a Photoinduced Anisotropic Madium
Y. Okada-Shudo
Oral presentation, English, 5th International Conference on Organic Nonlinear Optics, Organic Nonlinear Optics, Davos, Switzerland, International conference
Mar. 2000 - Implementation pattern detection with polarization encoding using bacteriorhodopsin film
K. Shimizu; Y. Takaki; Y. Okada-Shudo; H. Ohzu
Poster presentation, English, Sixth International Conference on Optics Within Life Sciences(OWLS VI), OWLS, Sydney, Australia, International conference
Feb. 2000 - 生体膜を用いた光メモリーと光波制御
岡田佳子
Public discourse, Japanese, 大阪府地域結集型共同研究事業 時空間光情報変換システム研究グループ 平成11年度第3回研究会, Invited, 大阪府, 大阪, Domestic conference
Jun. 1999 - 光誘導異方性媒質への偏光ホログラム記録特性
岡田佳子; J-M. Jonathan; G. Roosen
Invited oral presentation, Japanese, ホログラフィックディスプレイ-コンテンポラリーオプティクスジョイント研究会, Invited, 日本光学会ホログラフィックディスプレイ研究グループ, Domestic conference
Mar. 1999 - バイオ素子を用いた光情報処理
岡田佳子
Public discourse, Japanese, 応用物理学会日本光学会光コンピューティング第84回研究会, Invited, 応用物理学会日本光学会, 神奈川, Domestic conference
Dec. 1998 - Nonlinear Optical Properties of Multilayered Structures and Composites of C60 with Electron Donors
Y. Okada-Shudo; F. Kajzar; C. D. Merritt; Z. H. Kafafi
Oral presentation, English, Materials for Nonlinear Optics, 11th Topical Meeting of The European Optical Society, The European Optical Society, Capri, Italy, International conference
Jul. 1997 - Nonlinear Optical Properties of Charge-Transfer Molecular Systems with C60
F. Kajzar; Y. Okada-Shudo; C. D. Merritt; Z. H. Kafafi
Oral presentation, English, SPIE, Fullerenes and Photonics IV, SPIE, San Diego, USA, International conference
Jul. 1997 - Holographic Zone Plate in Bacteriorhodopsin Film for Wave- length Division Beam Splitter
Y. Okada-Shudo; F. Kajzar
Oral presentation, English, Third International Conference on Organic Nonlinear Optics, Organic Nonlinear Optics, Florida, USA, International conference
Dec. 1996 - タンパク質分子でできた光学素子
岡田佳子
Public discourse, Japanese, 工業技術院大阪工業技術研究所第4回有機フォトニクスセミナー, Invited, 工業技術院大阪工業技術研究所, 王様, Domestic conference
Oct. 1996 - Nonlinear Optical Properties of Multilayered Structures and Composites of C60 with Electron Donors
Y. Okada-Shudo; F. Kajzar; C. D. Merritt; Z. H. Kafafi
Invited oral presentation, English, SPIE, Fullerenes and Photonics III, Denver, USA, Invited, SPIE, Denver, USA, International conference
Aug. 1996 - Erasable Zone Plate in Bacto- riorhodopsin Film for Photonic Switching
Y. Okada-Shudo; K. Ujihara; H. Tomioka; I. Yamaguchi
Oral presentation, English, Conference on Laser and Electro- Optics Europe, Conference on Laser and Electro- Optics Europe, Amsterdam, Netherlands, International conference
Nov. 1995 - Nonconformity of Planar Microcavity Dye Lasers with Schawlow-Townes Law
K. Ujihara; T. Enomoto; Y. Okada-Shudo
Oral presentation, English, Frontiers in Laser Physics and Spectroscopy, ISSP, Tokyo, Japan, International conference
Nov. 1995 - All-Optical Logic Processor using Polarization Discrimi- nation of Bacteriorhodopsin
Y. Okada-Shudo; H. Tomioka
Oral presentation, English, Conference on 2nd Japan- France Joint Forum “Organic Materials and Optoelectronic Devices”, CNRS France, Paris, France, International conference
Nov. 1995 - High-efficiency Fresnel Zone Plate for Microoptics by Deep UV Lithography
K. Kodate; Y. Okada; T. Kamiya
Oral presentation, English, Conference on Laser and Electro-Optics, Conference on Laser and Electro-Optics, Baltimore, USA, International conference
May 1995 - Optical Application of Bacteriorhodopsin Films
Y. Okada-Shudo
Invited oral presentation, English, Third International Conference of the International Society on Optics Within Life Sciences, Tokyo, Japan, Invited, OWLS, Tokyo, Japan, International conference
Apr. 1994 - 生物素子を用いた光情報処理
岡田佳子
Invited oral presentation, Japanese, NTT境界領域研究所公開セミナー, Invited, NTT境界領域研究所, 東京, Domestic conference
Oct. 1993 - 生物を用いた光情報記録・変換素子
岡田佳子
Public discourse, Japanese, 応用物理学会日本光学会第30回サマーセミナー, Invited, 応用物理学会日本光学会, 長野, Domestic conference
Aug. 1993 - バクテリオロドプシンの光学素子への適用
岡田佳子
Public discourse, Japanese, 広島県産業技術振興機構オプトエレクトロニクス研究会, Invited, 広島県産業技術振興機構, 広島, Domestic conference
May 1993 - バクテリオロドプシンを用いた光情報処理
岡田佳子
Public discourse, Japanese, 月刊オプトロニクスR＆Dフォーラム, Invited, オプトロニクス社, 東京, Domestic conference
Apr. 1993 - バクテリオロドプシン分散薄膜による画像処理
岡田佳子
Invited oral presentation, Japanese, 高分子エレクトロニクス・高分離機能材料合同研究会, Invited, 高分子学会, Domestic conference
Mar. 1993 - バクテリオロドプシンを用いた光情報処理
岡田佳子
Invited oral presentation, Japanese, 日本化学会第64秋季年会, Invited, 日本化学会, 新潟, Domestic conference
Oct. 1992 - バクテリオロドプシンを用いた画像処理
岡田佳子
Invited oral presentation, Japanese, 第41回高分子学会, Invited, 高分子学会
02 Sep. 1992 - Optical Phase Conjugation using Bacteriorhodopsin
Y. Okada; J. Otomo; I. Yamaguchi; H. Sasabe
Oral presentation, English, Internatinal Symposium on “Molecular Mechanisms of Photo- Reception and Transduction in the Bio- Information Systems, Internatinal Symposium on “Molecular Mechanisms of Photo- Reception and Transduction in the Bio- Information Systems, Tokyo, Japan, International conference
Sep. 1992 - バクテリオロドプシンを用いた光情報処理
岡田佳子
Others, Japanese, 日本学術振興会情報科学用有機材料第142委員会第54回合同研究会, Invited
Jul. 1992 - バクテリオロドプシンを用いた位相共役光学
岡田佳子; 山口一郎
Invited oral presentation, Japanese, 第7回光波センシング技術研究会, Invited, 光波センシング, Domestic conference
May 1991 - OEIC用複合フレネルゾ－ンプレ－ト
岡田佳子
Invited oral presentation, Japanese, 春季第36回応用物理学会, Invited, 応用物理学会, Domestic conference
Apr. 1989 - Fiber-Optic Delay Circuit using Micro Fresnel Zone Plates
Y. Okada; X. Feng; K. Kodate; T. Kamiya
Oral presentation, English, Microoptics Conference, Microoptics Conference, Tokyo, Japan, International conference
Oct. 1987 - Low Bit- Error- Rate Optical Read-Only Memory Card Reader
F. Kimura; S. Izawa; S. Takahashi; Y. Okada; K. Kodate; T. Kamiya
Oral presentation, English, SPIE, SPIE, Qnebec, Canada, International conference
Aug. 1987 - Composite Zone Plate Elements for Opto- Electronic Integrated Circuits
K. Kodate; Y. Okada; T. Iida; T. Kamiya
Oral presentation, English, Optoelectronic Conference, Optoelectronic Conference, Tokyo, Japan, International conference
Jul. 1986 - Application of Syncrotron Orbitral Radiation Lithography to Optical Elements
K. Kodate; Y. Okada; T. Kamiya
Others, English, Synchrotron Radiation Laboraytory,Activity Report of Synchrotron Radiation Laboraytory
1986
Research Themes
- 光受容タンパク質を用いた視覚神経細胞デバイスによる方位錯視検出
岡田 佳子
日本学術振興会, 科学研究費助成事業, 電気通信大学, 基盤研究(C), Principal investigator, 23K11162
Apr. 2023 - Mar. 2026 - Photoreceptor protein-based simple cell receptive field for image processing
Okada-Shudo Yoshiko
Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, The University of Electro-Communications, Grant-in-Aid for Scientific Research (B), Principal investigator, A visual information processing device with ink-jet printed photoreceptor protein bacteriorhodopsin (bR) was fabricated and applied to feature extraction. The printing conditions (bR concentration, discharge frequency and droplet spacing) on transparent electrodes were optimised to fabricate a 7-valued 5-lobe cos-on-centre Gabor filter and a 4-lobe sin-on-centre Gabor filter that mimics the spatial structure of the response range 'receptive field' of simple cells in the primary visual cortex. The spatio-temporal frequency response showed a bandpass with a spatial frequency of 0.10 mm-1 and a temporal frequency peak of 4 Hz for both filters. Edge detection, direction detection and optical illusion detection were performed using this device. The human eye's edge detection and orientation detection functions were successfully reproduced using only the properties of the biomembrane, without the use of software, complex circuitry or a power supply., 18H03258
Apr. 2018 - Mar. 2022 - 生体を用いた光センサーおよび光位置検出器の研究
岡田佳子
綜研化学株式会社, 光センサーの研究推進のため
May 2020 - 光受容タンパク質を用いた視覚受容野型の情報処理素子の作製と画像処理
Yoshiko OKADA-SHUDO
Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, The University of Electro-Communications, Grant-in-Aid for Scientific Research (C), Principal investigator, 本研究の目的は，視覚機能タンパク質が示す 正負の極性反転微分応答を，視覚系ニューロン受容野 の興奮性と抑制性応答 に読み替えた視覚受容野型の情報処理素子を作製し，アナログ画像処理に適 用することである.対向する透明電極の内側両面に，タンパク質を選択的にパターニングするだけと いう非常にシンプルな方法で，視覚細胞の活動をモデル化したガウシアン差分 (DOG) 型と Gabor 型 フィルターを作製する，材料自身が太陽電池機能と微分・たたみこみ演算機能をもつため，電源や外 部回路が不要で，電極を一組しか用いない一画素アナログ演算素子が実現できる．この素子を用いて リアルタイムでエッジ検出と方向検出を行い，デジタル画像処理演算量の大幅な低減を試みる．, 15K00226
Apr. 2015 - Mar. 2018 - Development of optical-flow-sensing technology using two types of photoreceptor membrane proteins
Kasai Katsuyuki; OKADA Yoshiko
Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, National Institute of Information and Communications Technology, Grant-in-Aid for Scientific Research (C), Bacteriorhodopsin (bR) is a photoreceptor membrane protein extracted from the cell membrane of Halobacterium salinarum which lives in saline lakes. Irradiation of bacteriorhodopsin on the interface of electrodes and the electrolyte generates a time-differential photocurrent, which results in a signal that responds only to changes in the intensity of light without the need for an external power supply. By using two types of bR with different optical response characteristics, the optical flow detection known as a visual information function of an insect is attained. We have developed a novel optical-flow sensing method using a bipolar photosensor array with bR wildtype and its variant (D96N)., 26390051
Apr. 2014 - Mar. 2017 - Development of high power vacuum and extreme ultraviolet light source and its application to photoelectron spectroscopy
WATANABE SHUNTARO; WATANABE Masayoshi; ZHANG Yun; OKADA Yoshiko; ZHOU Chun; SHIN Shik; KOBAYASHI Yohei; ITATANI Jiro; KANAI Teruto
Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Tokyo University of Science, Grant-in-Aid for Scientific Research (A), Coinvestigator, Prism-coupled KBBF devices were developed by the tight optical contact of the boundary between CaF2 and KBBF with diffusion bonding. The light sources at 7 eV and 8 eV with these devices were supplied respectively to ultra high-resolution photoelectron spectroscopy of superconductive materials and to angle-resolved photoelectron spectroscopy measuring electronic states at 2-dimensional Brillouin zone. High-efficiency, large scale transmission gratings were developed and the wavefront distortion of the diffracted beam due to the bending of the grating were analyzed. A femtosecnd multi-color laser was developed by using these gratings for harmonic generation, resulting in the output powers of 0.5 TW at the fundamental (800nm) and 0.1 TW at the second harmonic respectively at a repetition rate of 1 kHz.. By applying dual broad band frequency doubling to this system, the output energy of 90μJ (45 fs) was obtained at the forth harmonic (220nm) ., 24246022
May 2012 - Mar. 2015 - 光受容性タンパク質を用いた視覚機能をもつ光検出器の開発とロボットビジョンへの適用
岡田佳子
御器谷科学技術財団, 研究助成, Principal investigator
2013 - 2014 - 導電性プラスチックと視覚機能タンパク質を用いたフレキシブル動画センサーの開発
OKADA-SHUDO Yoshiko; WATANABE Masayoshi; ZHANG Yun; TANAKA Kazuo
Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, The University of Electro-Communications, Grant-in-Aid for Scientific Research (C), We designed photosensors based on the bacteriorhodopsin (bR) pigment found in the cell membrane of Halobacteria and showed that motion detection is possible using only one sensing element. The photocell consists of a bR dip-coated thin film and electrolyte sandwiched between glass plates with ITO electrodes. We fabricated a simple direction sensor by patterning the bR films on electrodes. When light scans the sensing area, the edges of each pattern produce a positive or negative current depending on the light's speed and direction. These direction sensors also respond strongly to rapidly moving objects, though not at all to slow ones. Eventually we replaced ITO/glass with conductive polymer/plastic based on PEDET:PSS. The flexible sensor showed almost the same response as ITO/glass sensor, but couldn't sufficiently respond. The hybrid sensor with protein and conductive polymer will lead to large sensing area system and could be utilized for robot vision applications., 23560004
2011 - 2013 - 準連続発生高出力ＶＵＶコヒーレント光源の開発
WATANABE Masayoshi; WATANABE Shuntaro; OKADA Yoshiko; ZHANG Yung
Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, The University of Electro-Communications, Grant-in-Aid for Scientific Research (B), Coinvestigator, A high-power 199-nm coherent light source has been developed. In order to get a highly efficient frequency conversion for high power output in a vuv region, we employed a newly developed nonlinear crystal KBBF and an enhancement cavity technique. An output power of 60mW with a conversion efficiency of 7. 6% has been generated at 199nm., 21360029
2009 - 2011 - Second harmonic movie/imaging of live bacteria and cells
岡田佳子
日本学術振興会, 国際学会等派遣, Principal investigator
2008 - 2008 - 有機非線形媒質バクテリオロドプシンを用いた方向性結合器の開発
OKADA Yoshiko; ISHIHARA Teruya
Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, The University of Electro-Communications, Grant-in-Aid for Scientific Research (C), We have studied photonic crystal slab coated with bR-PVA layer for light-controlled optical switching. The photonic crystal slab was fabricated on a quartz substrate by means of the electron-beam lithography and reactive ion etching technique. We fabricated ten gratings with grating pitch L are from 600 to 720 nm. The transmitted intensity of light through the sample was measured at room temperature, as a function of the photon energy. In a thin waveguide, only the zero order TE and TM light mode can propagate. One of the typical results of the coupling to the waveguide modes is the appearance of sharp dips in the transmission spectrum. We altered the incident angle from-40 to 40 degrees. The polarization of the incident light is parallel to the grating line. We have observed the sharp transmission dips excited by waveguide modes and the photoinduced transmission change caused by refractive index change of bR. Quality (Q) factor of this resonator is estimated to be about 10^3 from the typical dip width (FWHM) 0.95 nm. Since the waveguide modes have a significant evanescent component, coupling to or from an external wave is strongly influenced by the refractive index of the material above the grating area. Thus, a change of refractive index of bR modulate the transmission spectra. In our measurements, the maximum shift of transmission dip was approximately 2.0 nm. These results demonstrate the feasibility of using a protein as a programmable active material in integrated optical devices. We have proposed that the shift of dips can be applied for light controlled optical switching. Hence, the fabrication of nanoscale structured optical device such as photonic crystal slab coated with bR polymer is a primary technological task. Not only chemical but also genetic control of optical properties of bR offers a great possibility for design of integrated optical device., 14550004
2002 - 2004 - Nonlinear Transmission Properties in Bacteriorhodopsin embedded Photonic Crystal
岡田佳子
本学術振興会, 国際学会等派遣, Principal investigator
2003 - 2003 - 生体膜バクテリオロドプシンの偏光認識性を用いた画像処理
岡田佳子
コニカ画像科学振興財団, 画像科学奨励賞, Principal investigator
1998 - 1999 - レチナール改変したバクテリオロドプシンを用いた人工網膜の色情報に関する研究
OKADA Yoshiko; TOMIOKA Hiroaki
Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, The University of Electro-Communications, Grant-in-Aid for Scientific Research (C), Bacteriorhodopsin (bR) is the best understood protein of the class of rhodopsins light sensitive pigments. Most known member of that family is rhodopsin, protein responsible for the light detection in human eye. We proposed a color photosensor made of bR and its variants. We simulated basic nonlinear optical proerties. (refrectivity and absorption) of wild type bacteriorhodopsin for green or red sensitive cone visual pigment. A variant of wild type bR is prepared by reconstituting bleached bR with 4-keto retinal as green sensitive cone. Absorption maxima for bR-4-keto is 515 nm, but the shape of spectrum is not sharp. Wt-bR can be changed to a blue species by acid (HC1) washing. Absorption spectra of blue membrane by our treatments shifted blue(λィイD2maxィエD2 = 600 nm). Tomioka isolated a phoborhodopsin which absorption maxima is 410 nm (or 490 nm). From the above results, we proposed artificial retina which have blue membrane, wt-bR and phoborhodopsin in place of red, green and blue sensitive cone visual pigments, respectivery., 10650004
1998 - 1999 - 平板形マイクロキャビティレ-ザ-における強度揺らぎに関する研究
氏原 紀公雄; 岡田 佳子
日本学術振興会, 科学研究費助成事業, 電気通信大学, 重点領域研究, マイクロキャビティレーザーにおける二次のコヒーレンスすなわち強度相関の程度を知ることを本年度の目的とした。平板形マイクロキャビティレーザーにおいては、その有効モード半径よりポング光ビーム半径が小さければ単一モード動作が起き、出力揺らぎは閾値以下ではボース・アインシュタイン分布、閾値以上ではポアソン分布となると予想される。他方有効モード半径よりポンプ光ビーム半径が大きければ複数モード動作が起き、出力揺らぎは常にガウス的であると予想される。昨年度は一定入力に対して100ショットで揺らぎを調べたが、本年はディジタルオシロスコープを活用して1000ショットで揺らぎを調べ、より詳細なデータを得た。使用発光媒体は色素ローダミン6G、励起光源はパルス幅0,9nsの窒素レーザー励起色素レーザーを用いた。色素濃度5×10^<-3>mol/1の場合は、単一モードの場合はほぼ予想どうりであったが、複数モードでは閾値以下で出力零の頻度が予想以上に多く、頻度分布が双峰性となることが観測された。これは何らかの原因で双安定性が生じているものと考えられ、更に検討する必要がある。色素濃度5×10^<-4>mol/1としたときは、単一モードにおいても複数モードにおいても定性的に予想と合致する結果が得られた。なお、色素濃度が5×10^<-4>mol/1のときは5×10^<-3>mol/1のときに比較して閾値が上昇したが、同時に閾におけるlog-logプロットのジャンプは減少した。これは、通常の4準位マイクロキャビティレーザーの予想とは逆の傾向である。通常の理論にはモル濃度の影響は取り入れられてはおらず、閾値の上昇に伴ってジャンプは増大するとされる。この矛盾を解決するため、有限の原・分子濃度を考慮した速度方程式を導入し、実験結果を説明し得ることを示した。, 09210207
1997 - 1997 - 微小共振器レ-ザ-の発振スペクトルに関する研究
氏原 紀公雄; 岡田 佳子
日本学術振興会, 科学研究費助成事業, 電気通信大学, 重点領域研究, マイクロキャビティレーザーの出力スペクトルが、発振閾値以上でシャウロウ・タウンズ則に従わず、広いスペクトル幅を維持することを見いだした。したがって、マイクロキャビティレーザーの一次コヒーレンスは不良であるが、二次のコヒーレンスすなわち強度相関の程度を知ることを次の課題と定めた。平板形マイクロキャビティレーザーにおいては、その有効モード半径よりポンプ光ビーム半径が小さければ単一モード動作が、大きければ複数モード動作が起こると予想される。レーザーの強度揺らぎに対する標準的なフォッカー・プランク方程式が適用できるものと仮定すると、単一モードの閾以下ではボース・アインシュタイン的強度分布、閾以上ではポアソン的分布、複数モードでは閾の上下にかかわらずガウス的分布が得られる筈である。Q値の差により有効モード半径の異なる二つの平板形マイクロキャビティを用い、また励起光ビームの半径を様々に変えることにより、単一モード実験的に動作、複数モード動作の予想される状況を設定し、上記の出力強度分布が得られることを確認した。実験には発光媒体としてローダミン6Gを用い、励起光源にはパルス幅0.9nsの窒素レーザー励起色素レーザーを用いた。入出力特性上の各点において、一定入力で100〜200ショットの出力を測定し、出力の頻度分布を得た。標準的なフォッカー・プランク方程式による予測と半定量的な一致を見た。閾の定義がマイクロキャビティレーザーでは問題になっているが、閾近傍の頻度分布においては予測と異なる点が見られた。なお出力揺らぎの規格化分散は一般にモード数および平均出力とともに減少する傾向が見られた。, 08224208
1996 - 1996 - 高機能生体膜バクテリオロドプシンのもつ偏光認識性の光情報処理への応用
岡田佳子
カシオ科学振興財団, 研究助成, Principal investigator
1995 - 1996 - バクテリオロドプシンを用いた偏光制御型光スイッチ素子の開発
OKADA Yoshiko; TOMIOKA Hiroaki
Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, The University of Electro-Communications, Grant-in-Aid for Scientific Research (C), Bacteriorhodopsin (bR) is a photosensitive protein that shows remarkable anisotro This photoinduced anisotropy enables one to record the polarization hologram. We proposed a new photonic switching device with erasable focusing lens, Zone Plate, using bR.The arrangement employed to obtain the Zone Plate is Mach-Zehnder interferometer using 515 nm line of Ar-ion laser. In one of the write beams, a spherical lens is inserted. At the exit of the interferometer and at a determined distance, the bR film is placed on which the circular Zone Plate is recorded by means of the coherent superposition of thr plane and spherical wavefronts. Probe beams that have different wavelength travel with one of the write beams and irradiates the Zone Plate, which forms images of light source points respectively. Using above Zone Plate, we demonstrated the wavelength demultiplexer and optical switching where information is carrued by orthogonal polarization states., 07650047
1995 - 1996 - All-Optical Logic Processor using Polarization Discrimination of Bacteriorhodopsin
岡田佳子
東電記念科学技術研究所, 国際技術交流援助, Principal investigator
1995 - 1995 - バクテリオロドプシンを用いた波長分割型ビームスプリッターの開発
岡田 佳子
日本学術振興会, 科学研究費助成事業, 電気通信大学, 重点領域研究, バクテリオロドプシンはバクテリアの細胞膜から単離される色素タンパク質で、フォトクロミズムと強い非線形光学特性をもつため、実時間ホログラム記録材料として注目されている。本研究は、生体膜バクテリオロドプシン(bR)のフォトクロミズム利用して回折レンズ機能をもつホログラムを書き込み、各波長ごとに信号ののせられたマルチカラー入力光を波長ごとに分割する波長分割型ビームスプリッターを提案し、さらに以下のような計算機シミュレーションおよび実験的検討を行った。 1.Arイオンレーザを用いた2光束干渉法で、一方に凸レンズを挿入すると平面波と球面波が干渉して、bR薄膜上に同心円状のゾーンプレートのホログラムが記録される。これは回折型平板レンズとして機能するので読みだし光(信号光)を集光する。今年度は光学系にマッハツェンダー型を採用して記録光の入射角度を小さく、すなわちインラインホロクラムに近づけることによって、良好なスポット形状やスポットサイズが得られ、回折効率が向上した。 2.ゾーンプレートの回折機能によって、波長の異なる入力光は波長ごとに別の場所に集光する。光学系をマッハツェンダー型に移行し、さらに発散光を収束光にして、読み出し光を従来と反対方向から入力できるようにしたため、入力光の入射角度をブラッグ角に合わせる必要がなくなった。入力進号を簡単な方法で波長分割し、一素子で集光、波長分波機能をもつ素子を実現した。 3.さらにビーム伝搬法を用いて、レンズ焦点距離、入射角度などの各パラメータを変化させ、計算機シミュレーションによって記録再生の最適条件を検討した。, 07246218
1995 - 1995 - 屈折率グレ-ティングによる基本波の回折を利用した位相整合波長変換に関する研究
OGASAWARA Nagaatsu; LI Keren; YAMAGUCHI Koichi; OKADA Yoshiko
Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, University of Electro-Communications, Grant-in-Aid for General Scientific Research (C), A new quasi-phase-matching scheme for optical second-harmonic generation (SHG) utilizing periodic modulation of optical nonlinearity and refractive index at a period of one wavelength of the harmonic wave has been studied both theoretically and experimentally. It has been analyzed that several new types of phase matching, i.e., (1) the phase matching utilizing the bended omega-k dispersion near the stop band, (2) the quasi-phase-matching due to amplitude modulation of the fundamental wave and (3) the standing wave quasi-phase-matching are accomplished in the new modulated structure. The coexistence of the different types of phase matching is unique to the new scheme and leads to a high conversion efficiency. An extremely tiny SHG device with high efficiencies can be realized by inserting the new periodic structure in high Q cavities ; an analysis shows that, when an infrared diode laser is used as fundamental light source, harmonic outputs on the order of mW are obtained from a-10mum thick GaP/AlP stack forming a periodic modulation of optical constants between high reflectivity (-99%) end mirrors. The phase matched SHG in the new periodic structure has been confirmed experimentally. The sample used was an MBE-grown GaAs/AlAs stack and infrared radiation from a YAG laser was used as fundamental wave. Harmonic power emanating from the sample was measured as a function of the layr thickness taking advantage of the thickness nonuniformity in the sample. The results show an enhancement of SHG efficiency at an modulation period equal to one wavelength of the harmonic wave., 06650050
1994 - 1995 - バクテリオロドプシンを用いたフォトニックスイッチ素子の試作
岡田 佳子
日本学術振興会, 科学研究費助成事業, 電気通信大学, 奨励研究(A), 光による光の制御は高速化の可能性や多重並列処理の容易さから、光通信や光情報処理への適用が注目され、フォトニックスイッチ素子への要求が高まっている。本研究は生体膜バクテリオロドプシン(bR)のフォトクロミズム利用して回折型平板レンズのホログラムを書き込み、集光機能をもった光制御型スイッチ素子として提案、試作した。その結果以下の知見を得た。 1.Arイオンレーザを用いた2光束干渉法で、一方に凸レンズを挿入すると平面波と球面波が干渉して、bR薄膜上に同心円状のゾーンプレートのホログラムが記録される。これは回折型平板レンズとして機能するので読みだし光(信号光)を集光する。He-Neレーザを用いて集光機能を確認し、スポット形状、スポットサイズ、回折効率から最適記録条件を見いだした。 2.ゾーンプレートは実時間で書き込まれるので、on/offまたは、バクテリオロドプシンの偏光認識性を利用した偏光変化で書き込み光を制御できる。これによって信号光のスイッチング動作が確認できた。 ゾーンプレートの回折機能によって、波長の異なる入力光は波長ごとに別の場所に集光する。30μm薄膜の薄い試料を用いて、読みだし光の入射角度がブラッグ角度から±3°の許容範囲をもつことを確認した。これを利用すれば、入力進号が波長分割でき、一素子で集光、波長分割機能をもつスイッチ素子実現の可能性が高いことが分かった, 06750047
1994 - 1994 - 微小共振器レーザーにおける単一モード動作の実現と自然放出結合率の決定
岡田 佳子; 氏原 紀公雄
日本学術振興会, 科学研究費助成事業, 電気通信大学, 重点領域研究, 本研究は、色素Rh6Gを媒質としてパルス平板形微小共振器レーザにおいて、モード半径を励起ビーム径より大きくして単一モード動作を実現し、微小共振器レーザのキーパラメータである自然放出結合率を決定することを目的とした。これまでの反射鏡より一桁高反射率の反射鏡を用いて単一モード動作の実現を試みた結果、以下の知見が得られた。 1.自然放出スペクトル線幅、発振線幅は、ともに現有の分光器の分解能以下に狭まっていると認められた。また出射光の広がり角およびモード半径は、しきい値以下では定性的に理論値と一致したが、しきい値以上では一致しなかった。しかし近視野像の撮影から直接求められたしきい値以上でのモード半径は101μmで増大が確認できた。 2.入出力特性において、入力光強度が非常に小さい場合、出力光の強度に大きなゆらぎが観測された。入力光強度に対する出力パルス振幅のピーク値の頻度を測定したところ、自然放出領域で入力光強度が小さい場合には、ガウス的分布を示し、しきい値以上の領域での波形はポアッソン分布に従う。これは単一モードで発振しているレーザ光の光電子計数分布と定性的に同じ振る舞いであり、単一モード発振の根拠となる。これまで用いてきた93%の反射鏡による共振器では多数のモードが同時に動作しているため、このようなゆらぎが見られなかったと考えられる。本年は自然放出結合率など各パラメータの導出には至らなかったが、99.5%の高反射率鏡を用いた共振器での単一モード動作の実現を確認できた。, 06245210
1994 - 1994 - バクテリオロドプシンを用いた光論理回路
岡田 佳子
日本学術振興会, 科学研究費助成事業, 電気通信大学, 奨励研究(A), バクテリオロドプシン(以下bRと略)は、分子サイズ単位で可視光に反応して脱色し、もとへもどるサイクルを安定に繰り返すという優れた性質をもつ光受容タンパク質である。このフォトクロミズムを利用して縮退4光波混合による位相共役波の発生を行い、偏光情報を記録できる、すなわち入力光の偏光によって出力光の偏光を制御できることを確認してきた。本研究では全ての情報を光信号にのせて処理する光-光制御技術(フォトニクス)の一端として、生体素子bRの最もユニークな特徴である偏光の認識性を応用し、偏光状態を情報のキャリア(例えば、縦偏光をtrue,横偏光をfalse)とする入出力すべて光を用いた純光学的な論理回路の設計と動作確認を行い、入出力すべて光を用いた論理回路を実現した。 Ar^+レーザを用いた4光波混合実験において、1/2波長板を用いて書き込み光と読みだし光の偏光を180°変化させ、縦偏光をtrue(or 1)、横偏光をfalse(or 0)とし、発生する位相共役波の偏光(縦あるいは横)を演算結果とする光論理回路の設計を行った。まず偏光特性をそのまま利用してexclusive or回路を構築し、さらに1/2波長板、偏光ビームスプリッター等偏光素子を用いてand,or回路を設計、構成した。 入力光がビームの場合には数点の偏光素子を用いるだけでand,or回路の構築が出来、ともに高速応答を示した。さらに入力光の画像への拡張を試みたが、直交する偏光を含む画像サンプルの作製が困難であったため画像の論理演算実現には至らなかった。しかしプローブ光を直交する偏光をもつ2画像とし、これを同時に2重書き込みしたところ偏光子1点で2画像の和・差演算に成功し、bRを用いた生体素子が画像情報処理に有用であることを確認した。, 05750037
1993 - 1993 - バクテリオロドプシンを用いた偏光ホログラフィー
岡田 佳子
日本学術振興会, 科学研究費助成事業, 電気通信大学, 奨励研究(A), 04750032
1992 - 1992 - 超短共振器レ-ザ-における自然放出制御および超低閾値化に関する研究
氏原 紀公雄; 富田 康生; 岡田 佳子
日本学術振興会, 科学研究費助成事業, 電気通信大学, 一般研究(C), 1.理論 (1)ファブリィ・ペロー型超短共振器における自然放出率の理論を、二準位原子に対するものから、現在使用している色素等に適合するものに改良した。すなわち、発光原・分子が自由空間で持つ、均一および不均一広がりを熱浴で記述し、自然放出の過程をマスター方程式を用いて解いた。その結果大きい広がりのある場合はほぼそれに反比例する放出率の減少が見られた。 (2)速度方程式近似の下で、定常発振時の誘導放出光と自然放出光との比を求め、これから励起入力に対する出力光の偏光度を推定したところ入力出特性よりも急峻な閾特性が得られた。これは閾値を実験的に定めるために利用できる。 (3)ファブリィ・ペロー型超短共振器における自然放出の放射パターンの計算を非対称共振器の場合へ拡張した。低反射率側に強いローブが得られた。 2・実験 (1)共振器長1λ程度の超短共振器にローダミン6Gのアルコール溶液を注入し、510nm、パルス幅0.6nsの励起光パルスを照射し、出力光が自然放出領域から発振領域へ緩やかに移行することを観察した。推定される自然放出の共振器への結合率は0.01程度である。 (2)同上の系において、励起パルス光を直線偏光としたとき、入力を増加させると出力の偏光度が0から1へと急峻に上昇することを観測した。 (3)新たな試験レーザー材料としてEuキレートを3種類作成し、511nmにピークのある螢光を確認した。, 04650009
1992 - 1992 - バクテリオロドプシンを用いた光波制御と光メモリー
山口 一郎; 岡田 佳子; 加藤 純一; 岡本 隆之
日本学術振興会, 科学研究費助成事業, 理化学研究所, 一般研究(B), これまでにバクテリオロドプシン分散薄膜を用いた位相共役光学においてポンプ光とプローブ光の偏光が互いに直交している場合にも位相共役波を発生することを見出し、その偏光特性について実験、理論の両面から検討してきた。偏光を含めた位相共役波の発生には、偏光ホログラフィーと同様に2光束の合成電場の周期的変化を記録するための光誘導異方性(二色性、複屈性)が必要である。バクテリオロドプシンの強い光誘導異方性はレチナール分子の長軸に平行な光を最も強く吸収し、垂直な光を吸収しないことに由来する。本年度はバクテリオロドプシンの偏光記録再生機構を調べるために、光誘導異方性を検討した。 異方性の測定には偏光解析法を用いた。励起光を鉛直偏光とし、モニター光は励起光に対して45°傾いた直線偏光とする。モニター光は試料中に生じた異方性によって楕円偏光となるので、その偏光状態を解析する。その結果二色性、複屈折ともに励起光の強度および波長に依存することがわかった。しかし、直交する2光束によって作られる格子は吸収型か、屈折率型かの判定にはさらに検討が必要である。また二色性の励起光強度依存性については、光化学反応サイクルを簡単化した2準位間遷移モデルによって定量的に説明できることを示した。 一方バクテリオロドプシンの偏光認識性を利用すれば、異なる偏光状態の画像を記録再生する偏光多重記録や、それらの画像の和差演算が可能である。また偏光を情報のキャリアとして用いる全光学的論理回路の構築など新しいデバイスとしての応用を検討中である。 また、他の有機非線形デバイスの候補として、2色性色素をドープしたネマティック液晶の複屈折性の光応答変調特性も併せて調べた。, 03452090
1991 - 1992
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- Program committee of SPIE Security + Defence 2024 Edingburgh
Academic society etc, Planning etc, SPIE, Apr. 2024 - Sep. 2024 - Program committee of SPIE Security + Defence 2023 Amsterdam
Academic society etc, Planning etc, SPIE, Apr. 2023 - Sep. 2023 - Program committee of SPIE Security + Defence 2022 Berlin
Academic society etc, Planning etc, SPIE, Apr. 2022 - Sep. 2022 - Program committee of. Optics & Photonics International Congress 2022, Information Photonics
Academic society etc, Planning etc, OPTICS & PHOTONICS International Council, Jul. 2021 - Apr. 2022 - Program committee of SPIE Security + Defence 2021
Academic society etc, Planning etc, SPIE, Apr. 2021 - Sep. 2021 - Program committee of SPIE Security + Defence 2019 Strasbourg
Academic society etc, Planning etc, SPIE, Apr. 2019 - Sep. 2019 - Program committee of Optics & Photonics International Congress 2019, Information Photonics
Academic society etc, Planning etc, OPTICS & PHOTONICS International Council, Jul. 2018 - Apr. 2019 - Program committee of SPIE Security + Defence 2018 Berlin
Academic society etc, Planning etc, SPIE, Apr. 2018 - Sep. 2018 - Program committee of SPIE Security + Defence 2017 Warsaw
Academic society etc, Planning etc, SPIE, Apr. 2017 - Sep. 2017 - Program committee of Optics & Photonics International Congress 2017, Information Photonics
Academic society etc, Planning etc, Jul. 2016 - Apr. 2017 - Program committee of SPIE Security + Defence 2016, Edingburgh
Academic society etc, Planning etc, SPIE, Apr. 2016 - Sep. 2016 - International Advisory Committee of Fifth International Workshop on Advanced Nano and Biomaterials and Their Device Applications, Romania
Academic society etc, Planning etc, Romania, Apr. 2016 - Sep. 2016 - International Advisory Committee of Fourth International Workshop on Advanced Nano and Biomaterials and Their Device Applications, Romania
Academic society etc, Planning etc, Romania, Apr. 2014 - Sep. 2014 - Optics and Photonics Japan 2012 東京実行委員
Academic society etc, Planning etc, 日本光学会（応用物理学会）, Apr. 2012 - Nov. 2012 - International Advisory Committee of Third International Workshop on Advanced Nano and Biomaterials and Their Device Applications, Romania
Academic society etc, Planning etc, Romania, Apr. 2012 - Sep. 2012 - レーザー学会学術講演会第 31 回年次大会
Academic society etc, Planning etc, レーザー学会, Jan. 2010 - Optics & Photonics Japan 2009 実行委員
Academic society etc, Others, 日本光学会(応用物理学会), Apr. 2009 - Executive Committee of 2nd International Conference on Molecular Electronics and Bioelectronics(M & BE2)
Academic society etc, Planning etc, Apr. 2002 - Mar. 2004 - 冬季講習会実行委員
Academic society etc, Planning etc, 日本光学会(応用物理学会), May 2000 - Mar. 2001 - Optics Japan 2000 in 北見実行委員
Academic society etc, Planning etc, 日本光学会(応用物理学会), Jan. 2000 - 光学連合シンポジウム東京'95実行委員
Academic society etc, Planning etc, 日本光学会(応用物理学会), Oct. 1994 - Sep. 1995 - Executive Committee of International Symposium on Molecular Mechanism of The Photo-Reception and Transdution in The Bio-Information Systems
Academic society etc, Planning etc, 16 Apr. 1992
