Yun ZHANG

Department of Engineering ScienceProfessor
Cluster III (Fundamental Science and Engineering)Professor
Institute for Advanced ScienceProfessor
  • Profile:
    2008年4月から　　　　　　　　国立大学法人　電気通信大学　
    2006年3月から2008年3月まで　独立行政法人　科学技術振興機構　研究員
    2001年5月から2006年2月まで　独立行政法人　情報通信研究機構　専攻研究員
    2000年5月から2006年4月まで　独立行政法人　産業技術総合研究所　AIST Fellow
Researcher Information

Degree

  • 理学学士, 中国　山西大学
  • 理学修士, 中国　山西大学
  • 理学博士, 中国　山西大学

Research Keyword

  • 量子光学 量子情報 レーザー分光
  • 量子光学 量子情報 レーザー分

Field Of Study

  • Natural sciences, Semiconductors, optical and atomic physics
  • Nanotechnology/Materials, Optical engineering and photonics

Career

  • 01 Apr. 2021
    電気通信大学, 教授
  • 01 Jul. 2013 - 31 Mar. 2021
    電気通信大学, 准教授
  • 01 Apr. 2008 - 30 Jun. 2013
    電気通信大学, 助教
  • 01 Apr. 2008
    電気通信大学, 助教 准教授
  • 01 Mar. 2006 - 31 Mar. 2008
    学習院大学, 客員研究員
  • 01 Mar. 2006 - 31 Mar. 2008
    日本科学技術研究機構, 研究員
  • 07 May 2001 - 28 Feb. 2006
    情報通信研究機構, 専攻研究員
  • 07 May 2000 - 31 Mar. 2001
    産業総合研究所, 計量標準総合センター, AIST フェロー

Member History

  • 01 Jan. 2017
    editorial board, scientific reports
Research Activity Information

Paper

  • Accessing the spectrum of a single-photon by the Hong-Ou-Mandel interference
    Lifeng Duan; Aojie Xu; Lirong Wang; Yun Zhang
    Last, Optics Express, 32, 4, 5418-5428, Jan. 2024, Peer-reviwed
    Scientific journal
    DOI URL
  • Spectral Characterization of Two-Photon Interference between Independent Sources
    Duan, Lifeng; Aojie Xu; Yun Zhang
    Last, photonics, 10, 10, 1125, Oct. 2023, Peer-reviwed
    Scientific journal, English
    DOI URL
  • Parallel-to-orthogonal polarisation-state converter for dual-mode Nd:YVO4 microchip laser
    Masaharu Hyodo; Yun Zhang; Masayoshi Watanabe; Shingo Saito
    Electron. Lett, 57, 802-803, 22 Jul. 2021, Peer-reviwed
    Scientific journal, English
  • Measurement of the wavefunction for a biphoton state with homodyne detection using least squares estimation
    Yashui Han; Daohua Wu; Katauyuki Kasai; Masayoshi Watanabe; Yun Zhang
    J. Opt., 22, 025202, 01 Feb. 2020, Peer-reviwed
    Scientific journal, English
  • Controllable electromagnetically induced grating in a cascade-type atomic system
    Jin-Peng Yuan; Chao-Hua Wu; Yi-Hong Li; Li-Rong Wang; Yun Zhang; Lian-Tuan Xiao; Suo-Tang Jia
    Frontiers of Physics, 14, 5, 52603, Sep. 2019, Peer-reviwed
    Scientific journal, English
    DOI URL
  • Integer and fractional electromagnetically induced Talbot effects in a ladder-type coherent atomic system
    Jinpeng Yuan; Chaohua Wu; Yihong Li; Lirong Wang; Yun Zhang; Liantuan Xiao; Suotang Jia
    Optics Express, 27, 1, 92-100, 08 Jan. 2019, Peer-reviwed
    Scientific journal, English
  • Multi-photon interference between a two-photon state and a weak coherent state
    Yun Zhang; Lirong Wang; Masayoshi Watanabe
    Optics InfoBase Conference Papers, OSA - The Optical Society, 31 Oct. 2018
    International conference proceedings, English
    DOI URL
  • Experimental observation of three-photon interference between a two-photon state and a weak coherent state on a beam splitter
    Tingyu Li; Saburo Sakurai; Katuyuki Kasai; Lirong Wang; Masayoshi Watanabe; Yun Zhang
    Optics Express, 26, 20442-20449, 26 Aug. 2018, Peer-reviwed
    Scientific journal, English
  • Controlling quantum interference in phase space with amplitude
    Yinghong Xue; Tingyu Li; Katsuyuki Kasai; Yoshiko Okada-Shudo; Masayoshi Watanabe; Yun Zhang
    SCIENTIFIC REPORTS, 7, 22291-1-22291-6, May 2017, Peer-reviwed
    Scientific journal, English
    DOI URL
  • 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, 387, 241-244, Mar. 2017, Peer-reviwed
    Scientific journal, English
    DOI URL
  • Directionally selective motion detection with bacteriorhodopsin patterned sensor
    Yoshiko Okada-Shudo; Tokimasa Tanabe; Takayuki Mukai; Katsuyuki Kasai; Yun Zhang; Masayoshi Watanabe
    Synthetic Metals, 222, 249-254, 15 Oct. 2016, Peer-reviwed
    Scientific journal, English
  • Experimental realization of spatially separated entanglement with continuous variables using laser pulse trains
    Yun Zhang; Ryuhi Okubo; Mayumi Hirano; Yujiro Eto; Takuya Hirano
    SCIENTIFIC REPORTS, 5, 13029, Aug. 2015, Peer-reviwed
    Scientific journal, English
    DOI URL
  • KBBF結晶による準連続発生真空紫外コヒーレンス光源開発にむけて
    張 贇; 山口 大智; 陳 創天; 渡部 俊太郎; 渡辺 昌良
    レーザー研究, 日本レーザー学会, 43, 8, 542-545, Aug. 2015, Peer-reviwed, Invited
    Scientific journal, Japanese
    URL
  • 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, 12, 5, 055802, May 2015, Peer-reviwed
    Scientific journal, English
    DOI URL
  • 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 - Atomic, Molecular, and Optical Physics, American Physical Society, 91, 2, 26 Feb. 2015, Peer-reviwed
    Scientific journal, English
    DOI URL
  • 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, 91, 2, 023833, Feb. 2015, Peer-reviwed
    Scientific journal, English
    DOI URL
  • 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
    Scientific journal, English
    DOI URL
  • 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, 294, 271-275, May 2013, Peer-reviwed
    Scientific journal, English
    DOI URL
  • Temporal Characteristics of Pulsed Squeezing in a Nonlinear Optical Waveguide
    Yujiro Eto; Akane Koshio; Akito Ohshiro; Yun Zhang; Masahide Sasaki; Takuya Hirano
    JAPANESE JOURNAL OF APPLIED PHYSICS, 52, 4, Apr. 2013, Peer-reviwed
    Scientific journal, English
    DOI URL
  • Efficient phase noise suppression of an external-cavity diode-laser by optical filtering and resonant optical feedback
    Yun Zhang; S. Miyakawa; K. Kasai; Y. Okada-Shudo; M. Watanabe
    Appl. Phys. B, 108, 39-42, Aug. 2012, Peer-reviwed
    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, 50, 4, 042703, Apr. 2011
    Scientific journal, English
    DOI URL
  • Transporting continuous quantum variables of individual light pulses
    Yujiro Eto; Yun Zhang; Takuya Hirano
    OPTICS EXPRESS, 19, 2, 1360-1366, Jan. 2011, Peer-reviwed
    Scientific journal, English
  • Stable generation of quadrature entanglement using a ring interferometer
    Yujiro Eto; Akihiro Nonaka; Yun Zhang; Takuya Hirano
    PHYSICAL REVIEW A, 79, 5, 050302(R), May 2009, Peer-reviwed
    Scientific journal, English
    DOI URL
  • 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, 17, 10, 8119-8124, May 2009, Peer-reviwed
    Scientific journal, English
    DOI URL
  • Measurement of Entanglement in Time Domain - an Experiment towards Demonstration of EPR paradox with Continuous Variable using Laser Pulses
    Yun Zhang; R. Okubo; M. Hirano; T. Hirano
    QUANTUM COMMUNICATION, MEASUREMENT AND COMPUTING (QCMC), 1110, 197-+, 2009, Peer-reviwed
    International conference proceedings, English
    URL
    DOI URL
  • Pulsed homodyne detection of quadrature entanglement at telecommunication wavelength
    Yujiro Eto; Akihiro Nonaka; Yun Zhang; Takuya Hirano
    QUANTUM COMMUNICATION, MEASUREMENT AND COMPUTING (QCMC), 1110, 181-+, 2009, Peer-reviwed
    International conference proceedings, English
  • Time-resolved pulsed homodyne detector and its application to measurement of pulsed squeezed states
    Ryuhi Okubo; Mayumi Hirano; Yun Zhang; Takuya Hirano
    QUANTUM COMMUNICATION, MEASUREMENT AND COMPUTING (QCMC), 1110, 169-+, 2009, Peer-reviwed
    International conference proceedings, English
  • Observation of squeezed light at 1.535 μm using a pulsed homodyne detector
    Yujiro Eto; Takashi Tajima; Yun Zhang; Takuya Hirano
    Opt. Express, 16, 10650, Jul. 2008, Peer-reviwed
    Scientific journal, English
  • Pulse resolved measurement of quadrature phase amplitudes of squeezed pulse train at 76 MHz repetition rate
    Ryuhi Okubo; Mayumi Hirano; Yun Zhang; Takuya Hirano
    Opt. Lett., 33, 843, Jul. 2008, Peer-reviwed
    Scientific journal, English
  • Generation of non-classical states from an optical parametric oscillator/amplifier and their applications
    Yun Zhang
    FRONTIERS OF PHYSICS IN CHINA, 3, 2, 126-152, Jun. 2008, Peer-reviwed
    Scientific journal, English
    DOI URL
  • Experimental generation of broadband quadrature entanglement using laser pulses
    Yun Zhang; Tatsuya Furuta; Ryuhi Okubo; Kosuke Takahashi; Takuya Hirano
    PHYSICAL REVIEW A, 76, 1, 012314, Jul. 2007, Peer-reviwed
    Scientific journal, English
    DOI URL
  • Observation of squeezed light at 1.535 mu m using a pulsed homodyne detector
    Yujiro Eto; Takashi Tajima; Yun Zhang; Takuya Hirano
    OPTICS LETTERS, 32, 12, 1698-1700, Jun. 2007, Peer-reviwed
    Scientific journal, English
  • Efficient noise suppression of an amplified diode-laser by optical filtering and resonant optical feedback
    Y. Zhang; K. Hayasaka; K. Kasai
    APPLIED PHYSICS B-LASERS AND OPTICS, 86, 4, 643-646, Mar. 2007, Peer-reviwed
    Scientific journal, English
    DOI URL
  • Experimental generation of broadband quadrature entanglement using laser pulses
    Yun Zhang; Ryuhi Okubo; Tatsuya Furuta; Takuya Hirano
    Optics InfoBase Conference Papers, Optical Society of America (OSA), 2007
    International conference proceedings, English
    DOI URL
  • Pulsed homodyne detection of squeezed light at telecommunication wavelength
    Yujiro Eto; Tajima Takashi; Yun Zhang; Takuya Hirano
    Optics InfoBase Conference Papers, Optical Society of America (OSA), 2007
    International conference proceedings, English
    DOI URL
  • Generation of two-mode bright squeezed light using a noise-suppressed amplified diode laser
    Yun Zhang; Kazuhiro Hayasaka; Katsuyuki Kasai
    OPTICS EXPRESS, 14, 26, 13083-13088, Dec. 2006, Peer-reviwed
    Scientific journal, English
  • Realization of quantum correlation transfer between twin beams by conditional preparation technique
    Yun Zhang; Kazuhiro Hayasaka; Katsuyuki Kasai
    OPTICS COMMUNICATIONS, 266, 2, 598-603, Oct. 2006, Peer-reviwed
    Scientific journal, English
    DOI URL
  • Pulsed homodyne detection of squeezed light at telecommunication wavelength
    Yujiro Eto; Takashi Tajima; Yun Zhang; Takuya Hirano
    JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 45, 29-32, L821-L823, Aug. 2006, Peer-reviwed
    Scientific journal, English
    DOI URL
  • Conditional generation of twin sub-Poissonian beams via post-selection
    Yun Zhang; Kazuhiro Hayasaka; Katsuyuki Kasai
    International Journal of Modern Physics B, 20, 11-13, 1564-1569, 20 May 2006, Peer-reviwed
    International conference proceedings, English
    DOI URL
  • Experimental realization of quantum correlation transfer
    Yun Zhang; Katsuyuki Kasai; Kazuhiro Hayasaka
    Optics Commun., 266, 598, 2006, Peer-reviwed
    Scientific journal, English
  • Conditional generation of twin sub-Possionian states
    Yun Zhang; Katsuyuki Kasai; Kazuhiro Hayasaka
    International Journal of Modern Physics B, 20, 1546, 2006, Peer-reviwed
    Scientific journal, English
  • Experimental characterization of quantum-correlated twin beams and a quantum channel with twin beams
    Y Zhang; K Hayasaka; K Kasai
    OPTICS AND SPECTROSCOPY, 99, 2, 181-184, Aug. 2005, Peer-reviwed
    Scientific journal, English
  • Conditional transfer of quantum correlation in the intensity of twin beams
    Yun Zhang; Kazuhiro Hayasaka; Katsuyuki Kasai
    Physical Review A - Atomic, Molecular, and Optical Physics, 71, 6, Jun. 2005, Peer-reviwed
    Scientific journal, English
    DOI URL
  • Conditional transfer of quantum correlation in the intensity of twin beams
    Y Zhang; K Hayasaka; K Kasai
    PHYSICAL REVIEW A, 71, 6, 062341, Jun. 2005, Peer-reviwed
    Scientific journal, English
    DOI URL
  • Conditional generation of twin sub-Possionian states
    Yun Zhang; Kazuhiro Hayasaka; Katsuyuki Kasai
    Quantum Electronics and Laser Science Conference (QELS), 2, 1124-1126, 2005
    International conference proceedings, English
  • Nonclassical light generation from an optical parametric oscillator pumped by a frequency-doubled diode laser
    Kazuhiro Hayasaka; Yun Zhang; Katsuyuki Kasai
    Proceedings of SPIE - The International Society for Optical Engineering, 5631, 143-150, 2005, Peer-reviwed
    International conference proceedings, English
    DOI URL
  • Generation of 22.8 mW single-frequency green light by frequency doubling of a 50-mW diode laser
    K Hayasaka; Y Zhang; K Kasai
    OPTICS EXPRESS, 12, 15, 3567-3572, Jul. 2004, Peer-reviwed
    Scientific journal, English
  • Generation of twin beams from an optical parametric oscillator pumped by a frequency-doubled diode laser
    K Hayasaka; Y Zhang; K Kasai
    OPTICS LETTERS, 29, 14, 1665-1667, Jul. 2004, Peer-reviwed
    Scientific journal, English
  • Frequency reproducibility of an iodine-stabilized Nd : YAG laser at 532 nm
    FL Hong; J Ishikawa; Y Zhang; RX Guo; A Onae; H Matsumoto
    OPTICS COMMUNICATIONS, 235, 4-6, 377-385, May 2004, Peer-reviwed
    Scientific journal, English
    DOI URL
  • Single-beam noise characteristics of quantum-correlated twin beams
    Y Zhang; K Kasai; K Hayasaka
    JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, 21, 5, 1044-1049, May 2004, Peer-reviwed
    Scientific journal, English
  • Quantum channel using photon number correlated twin beams
    Y Zhang; K Kasai; K Hayasaka
    OPTICS EXPRESS, 11, 26, 3592-3597, Dec. 2003, Peer-reviwed
    Scientific journal, English
    DOI URL
  • Joint probability and conditional distribution of twin beams
    Yun Zhang; Katsuyuki Kasai
    2003 European Quantum Electronics Conference, EQEC 2003, Institute of Electrical and Electronics Engineers Inc., 380, 2003, Peer-reviwed
    International conference proceedings, English
    DOI URL
  • Experimental investigation of the intensity fluctuation joint probability and conditional distributions of the twin-beam quantum state
    Yun Zhang; Katsuyuki Kasai; Masayoshi Watanabe
    Optics Express, Optical Society of America (OSA), 11, 1, 14-19, 2003, Peer-reviwed
    Scientific journal, English
    DOI URL
  • Experimental investigation of the correlation and inference of the twin-beam quantum state
    Yun Zhang; Katsuyuki Kasai; Masayoshi Watanabe
    Optics Express, 11, 14, 2003, Peer-reviwed
    Scientific journal, English
  • Hyperfine structure and absolute frequency determination of the R(121)35-0 and P(142)37-0 transitions of I-127(2) near 532 nm
    FL Hong; Y Zhang; J Ishikawa; A Onae; H Matsumoto
    OPTICS COMMUNICATIONS, 212, 1-3, 89-95, Oct. 2002, Peer-reviwed
    Scientific journal, English
  • Investigation of the photon-number statistics of twin beams by direct detection
    Y Zhang; K Kasai; M Watanabe
    OPTICS LETTERS, 27, 14, 1244-1246, Jul. 2002, Peer-reviwed
    Scientific journal, English
  • Vibration dependence of the tensor spin-spin and scalar spin-spin hyperfine interactions by precision measurement of hyperfine structures of I-127(2) near 532 nm
    FL Hong; Y Zhang; J Ishikawa; A Onae; H Matsumoto
    JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, 19, 5, 946-953, May 2002, Peer-reviwed
    Scientific journal, English
  • Classical and quantum properties of optical parametric amplifier/deamplifier
    Y Zhang; K Kasai; M Watanabe
    PHYSICS LETTERS A, 297, 1-2, 29-36, May 2002, Peer-reviwed
    Scientific journal, English
  • Quantum switch teleportation with continuous variables using two-mode squeezed state
    Yun Zhang; Katsuyuki Kasai; Masayoshi Watanabe
    European Journal Physics D 21, 361 (2002), 21, 361, 2002, Peer-reviwed
    Scientific journal, English
  • Accurate frequency atlas of molecular iodine near 532 nm measured by an optical frequency comb generator
    Y Zhang; J Ishikawa; FL Hong
    OPTICS COMMUNICATIONS, 200, 1-6, 209-215, Dec. 2001, Peer-reviwed
    Scientific journal, English
  • Gauge block interferometer using three frequency-stabilized lasers
    Y Bitou; A Hirai; H Yoshimori; FL Hong; Y Zhang; A Onae; K Seta
    RECENT DEVELOPMENTS IN TRACEABLE DIMENSIONAL MEASUREMENTS, 4401, 288-297, 2001, Peer-reviwed
    International conference proceedings, English
    URL
    DOI URL
  • Frequency reproducibility of I-2-stabilized Nd : YAG lasers
    FL Hong; Y Zhang; J Ishikawa; Y Bitou; A Onae; J Yoda; H Matsumoto; K Nakagawa
    LASER FREQUENCY STABILIZATION, STANDARDS, MEASUREMENT AND APPLICATIONS, 4269, 143-154, 2001, Peer-reviwed
    International conference proceedings, English
    URL
    DOI URL
  • Experimental Generation of bright squeezed states from Narrowband NOPA
    Yun Zhang; Hai Wang; Xiaoying Li; Jietai Jing; Changde XIe; Kunchi Peng
    Phys. Rev. A, 62, 023813, 2000, Peer-reviwed
    Scientific journal, English
  • Quantum variances and squeezing of output field from NOPA
    Y Zhang; H Su; CD Xie; KC Peng
    PHYSICS LETTERS A, 259, 3-4, 171-177, Aug. 1999, Peer-reviwed
    Scientific journal, English
  • Experimental realization of a quantum measurement for intensity difference fluctuation using a beam splitter
    H Wang; Y Zhang; Q Pan; H Su; A Porzio; CD Xie; KC Peng
    PHYSICAL REVIEW LETTERS, 82, 7, 1414-1417, Feb. 1999, Peer-reviwed
    Scientific journal, English
  • Generation of two-mode quadrature-phase squeezing and intensity-difference squeezing from a cw-NOPO
    KC Peng; Q Pan; H Wang; Y Zhang; H Su; CD Xie
    APPLIED PHYSICS B-LASERS AND OPTICS, 66, 6, 755-758, Jun. 1998, Peer-reviwed
    Scientific journal, English
  • Sub-shot-noise measurement for slight absorption
    H Wang; Q Pan; Y Zhang; CY Xue; CD Xie; KC Peng
    SCIENCE IN CHINA SERIES A-MATHEMATICS, 41, 5, 534-540, May 1998, Peer-reviwed
    Scientific journal, English
  • Intracavity frequency-doubled and frequency-stabilized cw ring Nd : YAP laser
    Q Pan; TC Zhang; Y Zhang; RN Li; KC Peng; ZG Yu; QM Lu
    APPLIED OPTICS, 37, 12, 2394-2396, Apr. 1998, Peer-reviwed
    Scientific journal, English
  • Experimental investigation of intensity difference squeezing using Nd:YAP laser as pump source
    Q Pan; Y Zhang; TC Zhang; CD Xie; KC Peng
    JOURNAL OF PHYSICS D-APPLIED PHYSICS, 30, 11, 1588-1590, Jun. 1997, Peer-reviwed
    Scientific journal, English

MISC

  • 27pSK-8 Experimental demonstration of post-displacement quantum teleportation for individual light pulse
    Eto Yujiro; Zhang Yun; Hirano Takuya
    The Physical Society of Japan (JPS), 03 Mar. 2009, Meeting abstracts of the Physical Society of Japan, 64, 1, 143-143, Japanese, 1342-8349, 110007370223, AA11439205
  • 27pSK-6 Measurement of Continuous Variable Entanglement Using Pulse Light in Time-domain II
    Okubo R.; Hirano M.; Zhang Y.; Hirano T.
    The Physical Society of Japan (JPS), 03 Mar. 2009, Meeting abstracts of the Physical Society of Japan, 64, 1, 143-143, Japanese, 1342-8349, 110007370221, AA11439205
  • 22aZA-11 Generation of Squeezed Light using cw Mode-locking Laser and Optical Waveguide
    Hirano M.; Okubo R.; Zhang Y.; Hirano T.
    The Physical Society of Japan (JPS), 25 Aug. 2008, Meeting abstracts of the Physical Society of Japan, 63, 2, 125-125, Japanese, 1342-8349, 110006982849, AA11439205
  • 24pQD-4 Continuous-variable entangled state generation using pulsed light at telecommunication wavelength 2
    Eto Y.; Nonaka A.; Zhang Y.; Hirano T.
    The Physical Society of Japan (JPS), 29 Feb. 2008, Meeting abstracts of the Physical Society of Japan, 63, 1, 176-176, Japanese, 1342-8349, 110007196799, AA11439205
  • Observation of quadrature squeezing in a χ(2) nonlinear waveguide using a temporally shaped local oscillator pulse
    Yujiro Eto; Takashi Tajima; Yun Zhang; Takuya Hirano
    2008, Optics Express, 16, 14, 10650-16657
    DOI URL
  • Pulse-resolved measurement of quadrature phase amplitudes of squeezed pulse trains at a repetition rate of 76 MHz
    Ryuhi Okubo; Mayumi Hirano; Yun Zhang; Takuya Hirano
    2008, Optics Letters, 33, 13, 1458, 0146-9592, 80019722488, 18594664
    DOI URL
  • 23pRH-8 Continuous-variable entangled state generation using pulsed light at telecommunication wavelength
    Eto Y.; Nonaka A.; Zhang Y.; Hirano T.
    The Physical Society of Japan (JPS), 21 Aug. 2007, Meeting abstracts of the Physical Society of Japan, 62, 2, 192-192, Japanese, 1342-8349, 110007143333, AA11439205
  • 23pRH-7 Measurement of Continuous Variable Entanglement Using Pulse Light in Time-domain
    Okubo R.; Hirano M.; Zhang Y.; Hirano T.
    The Physical Society of Japan (JPS), 21 Aug. 2007, Meeting abstracts of the Physical Society of Japan, 62, 2, 191-191, Japanese, 1342-8349, 110007139082, AA11439205
  • 21aXK-3 Time domain measurement of pulsed squeezed states
    Furuta T.; Ookubo R.; Zhang Yung; Hirano T.
    The Physical Society of Japan (JPS), 28 Feb. 2007, Meeting abstracts of the Physical Society of Japan, 62, 1, 169-169, Japanese, 1342-8349, 110007193545, AA11439205
  • 21aXK-6 Generation of quadrature entanglement state using laser pulse
    Zhang Y.; Furuta T.; Okubo R.; Hirano T.
    The Physical Society of Japan (JPS), 28 Feb. 2007, Meeting abstracts of the Physical Society of Japan, 62, 1, 170-170, English, 1342-8349, 110007193542, AA11439205
  • 21aXK-4 Optimization of temporal shape of pulsed squeezed light
    Eto Y.; Tajima T.; Zhang Y.; Hirano T.
    The Physical Society of Japan (JPS), 28 Feb. 2007, Meeting abstracts of the Physical Society of Japan, 62, 1, 169-169, Japanese, 1342-8349, 110007193544, AA11439205
  • 21aXK-5 Squeezed Light using Fast Homodyne Detection
    Okubo R; Furuta T; Zhang T; Hirano T
    The Physical Society of Japan (JPS), 28 Feb. 2007, Meeting abstracts of the Physical Society of Japan, 62, 1, Japanese, 1342-8349, 110007193543
  • 26pRB-5 Pulsed homodyne detection of squeezed light at telecommunication wavelength II
    Tajima T.; Eto Y.; Zhang Y.; Hirano T.
    The Physical Society of Japan (JPS), 18 Aug. 2006, Meeting abstracts of the Physical Society of Japan, 61, 2, 122-122, Japanese, 1342-8349, 110007183344, AA11439205

Courses

  • 量子エレクトニクス
    The University of Electro-Communications
  • 量子エレクトニクス
    電気通信大学
  • 光エレクトニクス
    The University of Electro-Communications
  • 光エレクトニクス
    電気通信大学
  • 光・量子エレクトニクス基礎概論
    The University of Electro-Communications
  • 光・量子エレクトニクス基礎概論
    電気通信大学
  • 卒業輪講
    The University of Electro-Communications
  • 卒業輪講
    電気通信大学
  • 光エレクトにクス実験第一
    The University of Electro-Communications
  • 光エレクトにクス実験第二
    The University of Electro-Communications
  • 光エレクトにクス実験第二
    電気通信大学
  • インターシップ
    The University of Electro-Communications
  • インターシップ
    電気通信大学
  • 光エレクトにクス実験第一
    The University of Electro-Communications
  • 光エレクトにクス実験第一
    電気通信大学
  • 工学基礎数学および演習
    The University of Electro-Communications
  • インターンシップ
    The University of Electro-Communications
  • インターンシップ
    電気通信大学
  • 光エレクトニクス実験第一
    The University of Electro-Communications
  • 電気回路演習
    The University of Electro-Communications
  • 工学基礎数学および演習
    The University of Electro-Communications
  • 工学基礎数学および演習
    電気通信大学
  • 工学基礎数学
    The University of Electro-Communications
  • 工学基礎数学
    The University of Electro-Communications
  • 工学基礎数学
    電気通信大学
  • 光エレクトニクス実験第一
    The University of Electro-Communications
  • 光エレクトニクス実験第一
    電気通信大学
  • 電気回路演習
    The University of Electro-Communications
  • 電気回路演習
    電気通信大学

Affiliated academic society

  • America Physics Society
  • OSA

Research Themes

  • 2波長レーザーを用いる次世代光ファイバ無線のための位相変調技術の開発
    兵頭 政春; 張 贇
    日本学術振興会, 科学研究費助成事業, 金沢大学, 基盤研究(C), 2つの縦モードで同時に発振する2モード発振マイクロチップレーザの出力光（2つのモード光はともに鉛直方向の直線偏光）を直交偏光状態に変換するため，出力光を長さ17 mmのLiNbO3複屈折性結晶に導入して，偏光子と光スペクトラムアナライザを用いてその透過光の性質を入念に調べた．その結果，一方のモード光を消光させると他方のモード光の透過率は常にほぼ最大になり，2つのモード光がほぼ完全な直交偏光状態に変換されることを確認した．その一方で，それらの偏光状態は結晶の温度変化の影響を強く受け，4.0 rad/℃のレートでドリフトすることが明らかになった．そこで結晶全体を覆うことができるアクリル樹脂製のエアシールドを自作し，その内部にペルチエ素子と熱交換用ヒートシンクを配置し，シールド内部に恒温の空気を循環させることにより，結晶の温度変化が±0.01℃以下になるように負帰還制御を行った．その結果，シールド効率（室温の変化に対する結晶の温度変化の割合）として1/25の性能が得られ，透過光の偏光状態を長時間安定に維持することができるようになった． 結晶の温度を安定化した状態で透過光の偏光状態の波長依存性を測定し，波長の変化に対して偏光状態がほぼ直線的に変化することを確かめ，101 GHｚの周波数差に対するδ値の差がほぼπ/2になることを確認した．さらに，結晶の印加電圧を変化させて出力光の偏光状態を追跡する方法で半波長電圧を測定したところ，2つのモード光の平均として1.68±0.02 kVの値を得た．, 21K04923
    01 Apr. 2021 - 31 Mar. 2024
  • 量子干渉と推定法を用いた光の波動関数を測定する方法に関する研究
    01 Apr. 2021 - 31 Mar. 2024
  • ホモダイン検出器を用いて光子干渉に関する研究
    01 Apr. 2017 - 31 Mar. 2020
  • 異なる量子状態間の多光子干渉に関する研究
    01 Apr. 2014 - 31 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), 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
    31 May 2012 - 31 Mar. 2015
  • Development of an efficient cw optical parametric oscillator with a triple-cavity differential-control configuration
    KASAI Katsuyuki; ZHANG Yun
    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), Optical parametric oscillators are useful devices in various fields as the tunable coherent light sources. It is, however, difficult to obtain the stable tunable oscillation which has a low threshold in continuous-wave (cw) optical parametric oscillators. In this study, an efficient cw optical parametric oscillator with a periodically poled KTP (PPKTP) has been developed by using a triple-cavity differential-control configuration. Accordingly, the continuous tuning of the cw OPO has been achieved with a low threshold., 23560051
    2011 - 2013
  • Flexible sensor with conducting polymers and photosensitive protein
    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