Ryousuke SHIMIZU
| Department of Engineering Science | Professor |
| Cluster III (Fundamental Science and Engineering) | Professor |
| Institute for Advanced Science | Professor |
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Paper
- Time–frequency mode structure study of ultrafast two-photon quantum state with two-color dual-comb-based optical sampling
Prasad Koviri; Takahisa Kuwana; Hajime Komori; Masahiro Ishizeki; Takashi Kato; Akifumi Asahara; Thomas R. Schibli; Ryosuke Shimizu; Kaoru Minoshima
APL Photonics, AIP Publishing, 10, 5, 051303/1-8, 01 May 2025, Peer-reviwed, Quantum correlations of ultrafast quantum optical states in the time–frequency domain manifest prominently on femtosecond time scales, an elusive challenging regime. We develop a new method to probe the time–frequency mode structure of ultrafast two-photon states utilizing dual-comb-based asynchronously overlapping pulses with single-photon frequency upconversion through femtosecond optical sampling. This method enables quick, highly precise joint temporal intensity measurements over a broad temporal dynamic range with only a single linear scanning stage. We demonstrate full characterization of time–frequency entangled two-photon states in both time and frequency domains. We quantified the time–frequency mode structure in both time and frequency domains through Schmidt decomposition, resulting in temporal and spectral purities of 87.7% and 76.9%, respectively, for heralded single-photons without any spectral filtering. Furthermore, through the simple control of pump spectral bandwidth, we demonstrate the ability to tailor time–frequency entanglement, verifying the two-dimensional Fourier duality. This method paves the way for a substantial upgrade to ultrafast quantum optical techniques, enabling a rapid, detailed, and multi-dimensional characterization of entangled states with potential applications in quantum metrology and photon-deficient fluorescence imaging.
Scientific journal, English - Capturing the spectrotemporal structure of a biphoton wave packet with delay-line-anode single-photon imagers
Ozora Iso; Kensuke Miyajima; Ryosuke Shimizu
Last, Optics Express, Optica Publishing Group, 33, 9, 19504-19513, 25 Apr. 2025, Peer-reviwed, Distinguishing photon arrival time and position is crucial for advancing quantum technology. However, capturing spatial and temporal information efficiently remains challenging. Here, we present a novel photon detection technique to achieve a significantly more efficient measurement of frequency-entangled biphoton than conventional photon detectors. We utilize a delay-line-anode single-photon detector (DLD), which consists of a position-sensitive delay-line anode sensor behind a microchannel plate. Biphotons are obtained from the decay of biexcitons in the copper chloride semiconductor crystal. Two DLDs are coupled with a grating spectrometer exit to measure the joint spectral distributions of the biphoton. The resulting non-scanning process requires only a few minutes to obtain a temporally and spectrally resolved image, much quicker than the scanning biphoton frequency measurements such as monochromator or Fourier spectroscopy. Our technique paves the way for all experiments in multi-mode quantum science requiring coincidence measurement.
Scientific journal, English - Remote fiber sensing by quantum spectroscopy using frequency entangled photons via a real-world fiber network
Masahiro Ishizeki; Tomoya Okita; Akifumi Asahara; Ryosuke Shimizu; Kaoru Minoshima
Quantum Sensing and Nano Electronics and Photonics XXI, SPIE, 86-86, 21 Mar. 2025
International conference proceedings - Single-photon-level femtosecond time-resolved measurement by asynchronous optical sampling with dual-wavelength comb
Hajime Komori; Prasad Koviri; Masahiro Ishizeki; Haochen Tian; Thomas R. Schibli; Takashi Kato; Akifumi Asahara; Ryosuke Shimizu; Kaoru Minoshima
Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications XXIV, SPIE, 12 Mar. 2024
International conference proceedings - Pathway selectivity in time-resolved spectroscopy using two-photon coincidence counting with quantum entangled photons
Yuta Fujihashi; Akihito Ishizaki; Ryosuke Shimizu
Last, The Journal of Chemical Physics, AIP Publishing, 160, 10, 08 Mar. 2024, Peer-reviwed, Ultrafast optical spectroscopy is a powerful technique for studying the dynamic processes of molecular systems in condensed phases. However, in molecular systems containing many dye molecules, the spectra can become crowded and difficult to interpret owing to the presence of multiple nonlinear optical contributions. In this work, we theoretically propose time-resolved spectroscopy based on the coincidence counting of two entangled photons generated via parametric down-conversion with a monochromatic laser. We demonstrate that the use of two-photon counting detection of entangled photon pairs enables the selective elimination of the excited-state absorption signal. This selective elimination cannot be realized with classical coherent light. We anticipate that the proposed spectroscopy will help simplify the spectral interpretation of complex molecular and material systems comprising multiple molecules.
Scientific journal, English - Ultrafast time-resolved single-photon detection using two-color comb based asynchronous optical sampling for quantum applications
Prasad Koviri; Hajime Komori; Masahiro Ishizeki; Haochen Tian; Takashi Kato; Akifumi Asahara; Ryosuke Shimizu; Thomas R. Schibli; Kaoru Minoshima
Quantum Sensing and Nano Electronics and Photonics XX, SPIE, 08 Mar. 2024
International conference proceedings - Single-photon level ultrafast time-resolved measurement using two-color dual-comb-based asynchronous linear optical sampling
Prasad Koviri; Hajime Komori; Haochen Tian; Masahiro Ishizeki; Takashi Kato; Akifumi Asahara; Ryosuke Shimizu; Thomas R. Schibli; Kaoru Minoshima
Applied Physics Express, IOP Publishing, 17, 2, 022001-022001, 01 Feb. 2024, Abstract
We demonstrated an ultrafast time-resolved measurement method operating at the single-photon level and employing a two-color comb-based asynchronous optical sampling (ASOPS) setup. We harnessed the two-color ASOPS photon counting approach to achieve long-term averaging of the ultralow intensity signal with a synchronized optical trigger signal, which minimizes residual timing jitter between the two combs. A pulse-width limited picosecond cross-correlation signal was successfully obtained with a power level of <1 photon/pulse. This approach enables the thorough study of ultrafast time-resolved detection of entangled photon pairs, quantum mechanical correlations in the time-frequency domain and finds wide use in optical quantum technology.
Scientific journal - Comparison of multi-mode Hong-Ou-Mandel interference and multi-slit interference
Yan Guo; Zi-Xiang Yang; Zi-Qi Zeng; Chunling Ding; Ryosuke Shimizu; Rui-Bo Jin
Optics Express, Optica Publishing Group, 31, 20, 32849-32849, 18 Sep. 2023, Peer-reviwed, Hong-Ou-Mandel (HOM) interference of multi-mode frequency entangled states plays a crucial role in quantum metrology. However, as the number of modes increases, the HOM interference pattern becomes increasingly complex, making it challenging to comprehend intuitively. To overcome this problem, we present the theory and simulation of multi-mode-HOM interference (MM-HOMI) and compare it to multi-slit interference (MSI). We find that these two interferences have a strong mapping relationship and are determined by two factors: the envelope factor and the details factor. The envelope factor is contributed by the single-mode HOM interference (single-slit diffraction) for MM-HOMI (MSI). The details factor is given by sin (Nx)/sin (x) ([sin (Nv)/sin (v)]2) for MM-HOMI (MSI), where N is the mode (slit) number and x (v) is the phase spacing of two adjacent spectral modes (slits). As a potential application, we demonstrate that the square root of the maximal Fisher information in MM-HOMI increases linearly with the number of modes, indicating that MM-HOMI is a powerful tool for enhancing precision in time estimation. We also discuss multi-mode Mach-Zehnder interference, multi-mode NOON-state interference, and the extended Wiener-Khinchin theorem. This work may provide an intuitive understanding of MM-HOMI patterns and promote the application of MM-HOMI in quantum metrology.
Scientific journal, English - Spatial-spectral mapping to prepare frequency entangled qudits
Zi-Xiang Yang; Zi-Qi Zeng; Ying Tian; Shun Wang; Ryosuke Shimizu; Hao-Yu Wu; Shilong Liu; Rui-Bo Jin
Optics Letters, Optica Publishing Group, 48, 9, 2361-2364, 25 Apr. 2023, Peer-reviwed
Scientific journal, English - Polar-Coded Transmission over 7.8-km Terrestrial Free-Space Optical Links
Shingo Fujita; Eiji Okamoto; Hideki Takenaka; Hiroyuki Endo; Mikio Fujiwara; Mitsuo Kitamura; Ryosuke Shimizu; Masahide Sasaki; Morio Toyoshima
Photonics, MDPI AG, 10, 4, 462-462, 17 Apr. 2023, Peer-reviwed, Free-space optical (FSO) communications can offer high-capacity transmission owing to the properties of the laser beams. However, performance degradation caused by atmospheric turbulence is an urgent issue. Recently, the application of polar codes, which can provide capacity-achieving error-correcting performance with low computational cost for decoding, to FSO communications has been studied. However, long-distance and real-field experiments have not been conducted in these studies. To the best of our knowledge, this study is the first to present the experimental results of polar-coded transmission over 7.8-km FSO links. Using experimental data, we investigated the performance of polar codes over atmospheric channels, including their superiority to regular low-density parity-check codes. We expect that our results will offer a path toward the application of polar codes in high-speed optical communication networks including satellites.
Scientific journal, English - Short interference fringe and high event rate of two-photon interference using up-converted photon pairs
Atsushi Syouji, Ryosuke Shimizu, Shigehiro Nagano, Koji Suizu, and Keiichi Edamatsu
Japanese Journal of Applied Physics, 63, 2, 022003/1-4, 16 Feb. 2023, Peer-reviwed, False
Scientific journal, English - Quantum interferometric spectroscopy of a biexciton
Hiroya Seki, Kensuke Miyajima, and Ryosuke Shimizu
Physical Review A, American Physical Society, 106, 063716/1-7, 22 Dec. 2022, Peer-reviwed, False
Scientific journal, English - Two-photon spectral modulation via temporal manipulation: Quantum optical synthesis of spectral modes from temporal square waves
Rui-Bo Jin, Hiroki Oshima, Takumi Yagisawa, Masahiro Yabuno, Shigehito Miki, Fumihiro China, Hirotaka Terai, Ryosuke Shimizu
Applied Physics Letters, AIP Publishing, 121, 24, 244002/1-8, 13 Dec. 2022, Peer-reviwed, True
Scientific journal, English - Ultrafast measurement of a single-photon wave packet using an optical Kerr gate
Masahiro Yabuno; Takahiro Takumi; Fumihiro China; Shigehito Miki; Hirotaka Terai; Peter J. Mosley; Rui-Bo Jin; Ryosuke Shimizu
Optics Express, 30, 4, 4999-5007, 02 Feb. 2022, Peer-reviwed
Scientific journal, English - Broadband-laser-diode pumped PPKTP-Sagnac polarization-entangled photon source
Neng Cai; Wu-Hao Cai; Shun Wang; Fang Li; Ryosuke Shimizu; Rui-Bo Jin
Journal of the Optical Society of America B, 39, 1, 77-82, 08 Dec. 2021, Peer-reviwed
Scientific journal, English - Quantum optical synthesis in 2D time-frequency space
Rui-Bo Jin; Kurumi Tazawa; Naoto Asamura; Masahiro Yabuno; Shigehito Miki; Fumihiro China; Hirotaka Terai; Kaoru Minoshima; Ryosuke Shimizu
APL Photonics, AIP Publishing, 6, 8, 086104/1-7, 02 Aug. 2021, Peer-reviwed
Scientific journal, English - Detection of Time-Frequency Entangled Photons in 2D space and Demonstration of its Duality Relation
Ryosuke SHIMIZU
The Review of Laser Engineering, レーザー学会, 49, 4, 206-211, 20 Apr. 2021, Peer-reviwed, Invited
Scientific journal, Japanese - Mid-infrared spectrally-uncorrelated biphotons generation from doped PPLN: a theoretical investigation.
Bei Wei; Wu-Hao Cai; Chunling Ding; Guang-Wei Deng; Ryosuke Shimizu; Qiang Zhou; Rui-Bo Jin
Opt. Express, 29, 1, 256-271, 22 Dec. 2020, Peer-reviwed
Scientific journal, English - Generation of pseudo-sunlight via quantum entangled photons and the interaction with molecules
Yuta Fujihashi; Ryosuke Shimizu; Akihito Ishizaki
Phys. Rev. Research, 2, 2, 023256/1-7, 01 Jun. 2020, Peer-reviwed
Scientific journal, English - Spectrally uncorrelated biphotons generated from"the family of BBO crystal"
Rui-Bo Jin; Wu-Hao Cai; Chunling Ding; Feng Mei; Guang-Wei Deng; Ryosuke Shimizu; Qiang Zhou
Quantum Engineering, 2, 2, e38/1-15, 16 May 2020, Peer-reviwed
Scientific journal, English - Theoretical investigation of a spectrally pure-state generation from isomorphs of KDP crystal at near-infrared and telecom wavelengths.
Rui-Bo Jin; Neng Cai; Ying Huang; Xiang-Ying Hao; Shun Wang; Fang Li; Hai-Zhi Song; Qiang Zhou; Ryosuke Shimizu
Phys. Rev. Appl., 11, 034067/1-9, 28 Mar. 2019, Peer-reviwed
Scientific journal, English - Free-space optical secret key agreement with post-selection based on channel state information
Hiroyuki Endo; Mikio Fujiwara; Mitsuo Kitamura; Orie Tsuzuki; Ryosuke Shimizu; Masahiro Takeoka; Masahide Sasaki
Proceedings of SPIE - The International Society for Optical Engineering, SPIE, 11153, 2019
International conference proceedings, English - Time-frequency duality of biphotons for quantum optical synthesis
Rui-bo Jin; Takuma Saito; Ryosuke Shimizu
Phys. Rev. Appl., 10, 034011/1-11, 07 Sep. 2018, Peer-reviwed
Scientific journal, English - Free space optical secret key agreement
Hiroyuki Endo; Mikio Fujiwara; Mitsuo Kitamura; Orie Tsuzuki; Toshiyuki Ito; Ryosuke Shimizu; Masahiro Takeoka; Masahide Sasaki
Opt. Express, 26, 18, 23305-23332, 27 Aug. 2018, Peer-reviwed
Scientific journal, English - Quantum manipulation of biphoton spectral distributions in a 2D frequency space toward arbitrary shaping of a biphoton wave packet
Rui-bo Jin; Ryoji Shiina; Ryosuke Shimizu
Opt. Express, 26, 16, 21153-21158, 01 Aug. 2018, Peer-reviwed
Scientific journal, English - Free-space optical wiretap channel and experimental secret key agreement in 7.8 km terrestrial link
Mikio Fujiwara; Toshiyuki Ito; Mitsuo Kitamura; Hiroyuki Endo; Orie Tsuzuki; Morio Toyoshima; Hideki Takenaka; Yoshihisa Takayama; Ryosuke Shimizu; Masahiro Takeoka; Ryutaroh Matsumoto; Masahide Sasaki
Opt. Express, 26, 15, 19513-19523, 18 Jul. 2018, Peer-reviwed
Scientific journal, English - Extended Wiener–Khinchin theorem for quantum spectral analysis
Rui-Bo Jin; Ryosuke Shimizu
Optica, OSA - The Optical Society, 5, 2, 93-98, 20 Feb. 2018, Peer-reviwed
Scientific journal, English - Quantum photonic network and physical layer security.
Masahide Sasaki; Hiroyuki Endo; Mikio Fujiwara; Mitsuo Kitamura; Toshiyuki Ito; Ryosuke Shimizu; Morio Toyoshima
Philos, Trans. R. Soc. A-Math. Phys. Eng. Sci., 375, 2099, 20160243/1-20160243/10, 26 Jun. 2017, Peer-reviwed
Scientific journal, English - Monotonic quantum-to-classical transition enabled by positively correlated biphotons
Rui-Bo Jin; Guo-Qun Chen; Hui Jing; Changliang Ren; Pei Zhao; Ryosuke Shimizu; Pei-Xiang Lu
PHYSICAL REVIEW A, 95, 6, 062341/1-8, Jun. 2017, Peer-reviwed
Scientific journal, English - 3-3 channel estimation experiment for physical layer cryptography in free-space optical communication
Hiroyuki Endo; Mikio Fujiwara; Mitsuo Kitamura; One Tsuzuki; Toshiyuki Itoh; Ryosuke Shimizu; Mono Toyoshima; Hideki Takenaka; Masahiro Takeoka; Masahide Sasaki
Journal of the National Institute of Information and Communications Technology, National Institute of Information and Communications Technology, 64, 1, 31-39, 2017
Scientific journal, English - Detection-dependent six-photon Holland-Burnett state interference
Rui-Bo Jin; Mikio Fujiwara; Ryosuke Shimizu; Robert J. Collins; Gerald S. Buller; Taro Yamashita; Shigehito Miki; Hirotaka Terai; Masahiro Takeoka; Masahide Sasaki
SCIENTIFIC REPORTS, 6, 36914/1-7, Nov. 2016, Peer-reviwed
Scientific journal, English - 光空間通信における物理レイヤ暗号 実環境における性能推定と符号化
遠藤寛之; 藤原幹生; 北村光雄; 伊藤寿之; 豊嶋守生; 竹中秀樹; 清水亮介; 青木隆朗; 佐々木雅英
IEICE Technical Report, 電子情報通信学会, 116, 183, 7-12, 18 Aug. 2016, Invited
Scientific journal, Japanese - Simple method of generating and distributing frequency-entangled qudits
Rui-Bo Jin; Ryosuke Shimizu; Mikio Fujiwara; Masahiro Takeoka; Ryota Wakabayashi; Taro Yamashita; Shigehito Miki; Hirotaka Terai; Thomas Gerrits; Masahide Sasaki
Quantum Science and Technology, Institute of Physics Publishing, 1, 1, 015004/1-9, 01 Aug. 2016, Peer-reviwed
Scientific journal, English - Free-space optical channel estimation for physical layer security
Hiroyuki Endo; Mikio Fujiwara; Mitsuo Kitamura; Toshiyuki Ito; Morio Toyoshima; Yoshihisa Takayama; Hideki Takenaka; Ryosuke Shimizu; Nicola Laurenti; Giuseppe Vallone; Paolo Villoresi; Takao Aoki; Masahide Sasaki
OPTICS EXPRESS, 24, 8, 8940-8955, Apr. 2016, Peer-reviwed
Scientific journal, English - 光空間通信の物理レイヤセキュリティ技術
遠藤寛之; 藤原幹生; 北村光雄; 伊藤寿之; 豊嶋守生; 竹中秀樹; 清水亮介; 青木隆朗; 佐々木雅英
IEICE Technical Report, 電子情報通信学会, 115, 448, 11-15, Feb. 2016
Scientific journal, Japanese - Spectrally resolved Hong-Ou-Mandel interference between independent photon sources
Rui-Bo Jin; Thomas Gerrits; Mikio Fujiwara; Ryota Wakabayashi; Taro Yamashita; Shigehito Miki; Hirotaka Terai; Ryosuke Shimizu; Masahiro Takeoka; Masahide Sasaki
OPTICS EXPRESS, 23, 22, 28829-28835, Nov. 2015, Peer-reviwed
Scientific journal, English - Spectral properties of broadband biphotons generated from PPMgSLT under a type-II phase-matching condition
Nandan S. Bisht; Ryosuke Shimizu
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, 32, 4, 550-554, Apr. 2015, Peer-reviwed
Scientific journal, English - Highly efficient entanglement swapping and teleportation at telecom wavelength
Rui-Bo Jin; Masahiro Takeoka; Utako Takagi; Ryosuke Shimizu; Masahide Sasaki
SCIENTIFIC REPORTS, 5, 93333/1-7, Mar. 2015, Peer-reviwed
Scientific journal, English - Efficient detection of an ultra-bright single-photon source using superconducting nanowire single-photon detectors
Rui-Bo Jin; Mikio Fujiwara; Taro Yamashita; Shigehito Miki; Hirotaka Terai; Zhen Wang; Kentaro Wakui; Ryosuke Shimizu; Masahide Sasaki
OPTICS COMMUNICATIONS, 336, 47-54, Feb. 2015, Peer-reviwed
Scientific journal, English - Efficient generation of twin photons at telecom wavelengths with 10 GHz repetition-rate-tunable comb laser
Jin Rui-Bo; Shimizu Ryosuke; Morohashi Isao; Wakui Kentaro; Takeoka Masahiro; Izumi Shuro; Sakamoto Takahide; Fujiwara Mikio; Yamashita Taro; Miki Shigehito; Terai Hirotaka; Wang Zhen; Sasaki Masahide
2015 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO), ., 2015
Scientific journal, English - Efficient generation of twin photons at telecom wavelengths with 2.5 GHz repetition-rate-tunable comb laser
Rui-Bo Jin; Ryosuke Shimizu; Isao Morohashi; Kentaro Wakui; Masahiro Takeoka; Shuro Izumi; Takahide Sakamoto; Mikio Fujiwara; Taro Yamashita; Shigehito Miki; Hirotaka Terai; Zhen Wang; Masahide Sasaki
SCIENTIFIC REPORTS, 4, 7468/1-6, Dec. 2014, Peer-reviwed
Scientific journal, English - Pulsed Sagnac polarization-entangled photon source with a PPKTP crystal at telecom wavelength
Rui-Bo Jin; Ryosuke Shimizu; Kentaro Wakui; Mikio Fujiwara; Taro Yamashita; Shigehito Miki; Hirotaka Terai; Zhen Wang; Masahide Sasaki
OPTICS EXPRESS, 22, 10, 11498-11507, May 2014, Peer-reviwed
Scientific journal, English - Pulsed Sagnac polarization-entangled photonsource with a PPKTP crystal at telecom wavelength
Rui-Bo Jin; Ryosuke Shimizu; KentaroWakui; Mikio Fujiwara; Taro Yamashita; S. Terai; Shigehito Miki Hirotaka; Zhen Wang; Masahide Sasaki
Optics InfoBase Conference Papers, Optical Society of America (OSA), 2014
International conference proceedings, English - Pulsed Sagnac polarization-entangled photon source with a PPKTP crystal at telecom wavelength
Rui-Bo Jin; Ryosuke Shimizu; Kentaro Wakui; Mikio Fujiwara; Taro Yamashita; Shigehito Miki; Hirotaka Terai; Zhen Wang; Masahide Sasaki
2014 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO), 22, 10, 11498-11507, 2014, Peer-reviwed
International conference proceedings, English - Entangled-state generation with an intrinsically pure single-photon source and a weak coherent source
Rui-Bo Jin; Ryosuke Shimizu; Fumihiro Kaneda; Yasuyoshi Mitsumori; Hideo Kosaka; Keiichi Edamatsu
PHYSICAL REVIEW A, 88, 1, 012324/1-4, Jul. 2013, Peer-reviwed
Scientific journal, English - Nonclassical interference between independent intrinsically pure single photons at telecommunication wavelength
Rui-Bo Jin; Kentaro Wakui; Ryosuke Shimizu; Hugo Benichi; Shigehito Miki; Taro Yamashita; Hirotaka Terai; Zhen Wang; Mikio Fujiwara; Masahide Sasaki
Physical Review A - Atomic, Molecular, and Optical Physics, 87, 6, 063801/1-4, 03 Jun. 2013, Peer-reviwed
Scientific journal, English - Widely tunable single photon source with high purity at telecom wavelength
Rui-Bo Jin; Ryosuke Shimizu; Kentaro Wakui; Hugo Benichi; Masahide Sasaki
OPTICS EXPRESS, 21, 9, 10659-10666, May 2013, Peer-reviwed
Scientific journal, English - Widely-tunable, spectrally pure, high efficient photon pairs generation at telecom wavelength
Ruibo Jin; Ryosuke Shimizu; Kentaro Wakui; Hugo Benichi; Masahide Sasaki
2013 CONFERENCE ON AND INTERNATIONAL QUANTUM ELECTRONICS CONFERENCE LASERS AND ELECTRO-OPTICS EUROPE (CLEO EUROPE/IQEC), 2013, Peer-reviwed
International conference proceedings, English - Four-photon quantum interferometry at a telecom wavelength
Masahiro Yabuno; Ryosuke Shimizu; Yasuyoshi Mitsumori; Hideo Kosaka; Keiichi Edamatsu
PHYSICAL REVIEW A, 86, 1, 010302(R)/1-4, Jul. 2012, Peer-reviwed
Scientific journal, English - Experimental Activation of Bound Entanglement
Fumihiro Kaneda; Ryosuke Shimizu; Satoshi Ishizaka; Yasuyoshi Mitsumori; Hideo Kosaka; Keiichi Edamatsu
PHYSICAL REVIEW LETTERS, 109, 4, 040501/1-4, Jul. 2012, Peer-reviwed
Scientific journal, English - Entangled photon generation in two-period quasi-phase-matched parametric down-conversion
W.Ueno; F. Kaneda; H.Suzuki; S. Nagano; A. Syouji; R. Shimizu; K. Suizu; K. Edamatsu
Opt. Express, 20, 5, 5508-5517, Mar. 2012, Peer-reviwed
Scientific journal, English - Photon pair sources with controlled frequency correlation
K. Edamatsu; R. Shimizu; W. Ueno; R.-B. Jin; F. Kaneda; M. Yabuno; H. Suzuki; S. Nagano; A. Syouji; K. Suizu
Progress in Informatics, 8, 19-26, Mar. 2011, Peer-reviwed
Scientific journal, English - Generation and Characterization of Bound Entanglement in Optical Qubits
Fumihiro Kaneda; Ryosuke Shimizu; Yasuyoshi Mitsumori; Hideo Kosaka; Keiichi Edamatsu
Progress in Informatics, 8, 27-31, Mar. 2011, Peer-reviwed
Scientific journal, English - High-visibility nonclassical interference between intrinsically pure heralded single photons and photons from a weak coherent field
Rui-Bo Jin; Jun Zhang; Ryosuke Shimizu; Nobuyuki Matsuda; Yasuyoshi Mitsumori; Hideo Kosaka; Keiichi Edamatsu
PHYSICAL REVIEW A, 83, 3, 031805(R)/1-4, Mar. 2011, Peer-reviwed
Scientific journal, English - Generation and superactivation of bound entanglement
Fumihiro Kaneda; Ryosuke Shimizu; Satoshi Ishizaka; Yasuyoshi Mitsumori; Hideo Kosaka; Keiichi Edamatsu
2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference, CLEO EUROPE/EQEC 2011, 2011, Peer-reviwed
International conference proceedings, English - Measurement of reduced four-photon de Broglie wavelength at telecom wavelength
M. Yabuno; R. Shimizu; Y. Mitsumori; H. Kosaka; K. Edamatsu
2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference, CLEO EUROPE/EQEC 2011, 2011, Peer-reviwed
International conference proceedings, English - Intrinsic pure single-photon source and its nonclassical interference with weak coherent photons
Rui-Bo Jin; Jun Zhang; Ryosuke Shimizu; Nobuyuki Matsuda; Yasuyoshi Mitsumori; Hideo Kosaka; Keiichi Edamatsu
QUANTUM COMMUNICATION, MEASUREMENT AND COMPUTING (QCMC): THE TENTH INTERNATIONAL CONFERENCE, 1363, 2011, Peer-reviwed
International conference proceedings, English - Up-conversion dynamics for temporally entangled two-photon pulses
Masatoshi Nakatani; Ryosuke Shimizu; Kazuki Koshino
PHYSICAL REVIEW A, 83, 1, 013824/1-6, Jan. 2011, Peer-reviwed
Scientific journal, English - Efficient Up-Conversion Detection of 1550 nm Photons Using Bulk Periodically-Poled LiNbO3
Atsushi Syouji; Shigehiro Nagano; Ryosuke Shimizu; Koji Suizu; Keiichi Edamatsu
JAPANESE JOURNAL OF APPLIED PHYSICS, 49, 4, 040213/1-3, 2010, Peer-reviwed
Scientific journal, English - All-optical phase modulations in a silicon wire waveguide at ultralow light levels
Nobuyuki Matsuda; Ryosuke Shimizu; Yasuyoshi Mitsumori; Hideo Kosaka; Aya Sato; Hiroyuki Yokoyama; Koji Yamada; Toshifumi Watanabe; Tai Tsuchizawa; Hiroshi Fukuda; Seiichi Itabashi; Keiichi Edamatsu
APPLIED PHYSICS LETTERS, 95, 17, 171110/1-3, Oct. 2009, Peer-reviwed
Scientific journal, English - High-flux and broadband biphoton sources with controlled frequency entanglement
Ryosuke Shimizu; Keiichi Edamatsu
OPTICS EXPRESS, 17, 19, 16385-16393, Sep. 2009, Peer-reviwed
Scientific journal, English - Generation of Cross-Polarized Photon Pairs via Type-II Third-Order Quasi-Phase Matched Parametric Down-Conversion
Shigehiro Nagano; Atsushi Syouji; Ryosuke Shimizu; Koji Suizu; Hiromasa Ito; Keiichi Edamatsu
JAPANESE JOURNAL OF APPLIED PHYSICS, 48, 5, 050205/1-3, May 2009, Peer-reviwed
Scientific journal, English - Multimode Theory of Up-Conversion of Two Photons
Masatoshi Nakatani; Ryosuke Shimizu; Kazuki Koshino
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 78, 5, 054401/1-7, May 2009, Peer-reviwed
Scientific journal, English - Observation of optical-fibre Kerr nonlinearity at the single-photon level
Nobuyuki Matsuda; Ryosuke Shimizu; Yasuyoshi Mitsumori; Hideo Kosaka; Keiichi Edamatsu
NATURE PHOTONICS, 3, 2, 95-98, Feb. 2009, Peer-reviwed
Scientific journal, English - Controlled frequency entanglement of photons in type-II spontaneous parametric down-conversion
Ryosuke Shimizu; Keiichi Edamatsu
Optics InfoBase Conference Papers, Optical Society of America (OSA), 2009
International conference proceedings, English - Measurement of the cross-Kerr nonlinearity induced by a single-photon-level coherenet pulse in a photonic crystal fiber
N. Matsuda; R. Shimizu; Y. Mitumori; H. Kosaka; K. Edamatsu
Proc. 9th Int. Conf. on Quantum Communication, Measurement and Computing, 228, 2009, Peer-reviwed
Scientific journal, English - Generation of polarization entanglement from spatially correlated photons in spontaneous parametric down-conversion
Ryosuke Shimizu; Takashi Yamaguchi; Yasuyoshi Mitsumori; Hideo Kosaka; Keiichi Edamatsu
PHYSICAL REVIEW A, 77, 3, 032338/1-4, Mar. 2008, Peer-reviwed
Scientific journal, English - Temperature dependence of blue fight-induced near-infrared absorption of ferroelectric crystals
S. Nagano; R. Shimizu; A. Shoji; K. Suizu; K. Edamatsu
2008 CONFERENCE ON LASERS AND ELECTRO-OPTICS & QUANTUM ELECTRONICS AND LASER SCIENCE CONFERENCE, VOLS 1-9, 2439-+, 2008, Peer-reviwed
International conference proceedings, English - Generation of cross-polarized photon pairs in a 800-nm band via type-II parametric down-conversion using a periodically poled Lithium Niobate
S. Nagano; K. Suizu; Y. Sugiura; R. Shimizu; K. Edamatsu; H. Ito
Proc. 16th IEEE Int. Symp. on the Applications of Ferroelectrics (ISAF2007), 846-848, Dec. 2007, Peer-reviwed
International conference proceedings, English - 800-nm band cross-polarized photon pair source using type-II parametric down-conversion in periodically poled lithium niobate
Shigehiro Nagano; Ryosuke Shimizu; Yohei Sugiura; Koji Suizu; Keiichi Edamatsu; Hiromasa Ito
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 46, 41-44, L1064-L1067, Nov. 2007, Peer-reviwed
Scientific journal, English - Polarization entanglement of photons from a biexciton
K. Edamatsu; G. Oohata; R. Shimizu
Proc. 8th Int. Conf. on Quantum Communication, Measurement and Computing, 1-4, Jul. 2007, Peer-reviwed, Invited
International conference proceedings, English - Generation of polarization entangled photons using a spatial correlation in spontaneous parametric down-conversion
R. Shimizu; T. Yamaguchi; Y. Mitsumori; H. Kosaka; K. Edamatsu
Proc. 8th Int. Conf. on Quantum Communication, Measurement and Computing, 43-46, Jul. 2007, Peer-reviwed
International conference proceedings, English - Cross-polarized photon pair source using type-II quasi-phase matched parametric down-conversion
S. Nagano; K. Suizu; Y. Sugiura; R. Shimizu; K. Edamatsu; H. Ito
Proc. CLEO/Pacific Rim 2007, 1126-1127, May 2007, Peer-reviwed
International conference proceedings, English - Photon polarization entanglement induced by biexciton: Experimental evidence for violation of Bell's inequality
Goro Oohata; Ryosuke Shimizu; Keiichi Edamatsu
PHYSICAL REVIEW LETTERS, 98, 14, 140503/1-4, Apr. 2007, Peer-reviwed
Scientific journal, English - Polarization entanglement converted from spatially correlated photon pairs
R. Shimizu; T. Yamaguchi; Y. Mitsumori; H. Kosaka; K. Edamatsu
Optics InfoBase Conference Papers, Optical Society of America (OSA), 2007
International conference proceedings, English - Generation of polarization entanglement utilizing spatially correlated photon pairs from spontaneous parametric down-conversion
T. Yamaguchi; R. Shimizu; Y. Mitsumori; H. Kosaka; K. Edamatsu
Conference on Lasers and Electro-Optics Europe - Technical Digest, 2007, Peer-reviwed
International conference proceedings, English - Measurement of optical cross-Kerr nonlinearity induced by a few photons in a photonic crystal fiber
N. Matsuda; R. Shimizu; Y. Mitsumori; H. Kosaka; K. Edamatsu
Conference on Lasers and Electro-Optics Europe - Technical Digest, 2007, Peer-reviwed
International conference proceedings, English - Lossless all-optical phase gate using a polarization-division Sagnac interferometer applicable to a waveguide-type Kerr medium
Nobuyuki Matsuda; Yasuyoshi Mitsumori; Hideo Kosaka; Keiichi Edamatsu; Ryosuke Shimizu
Applied Physics Letters, 91, 17, 171119/1-3, 2007
Scientific journal, English - Generation of entangled photons in a semiconductor and violation of Bell's inequality.
G. Oohata; R. Shimizu; K. Edamatsu
Proc. 8th Int. Symp. on Foundations of Quantum Mechanics in the Light of New Technology,, 50-53, Jul. 2006, Peer-reviwed, 通研インポート200703
International conference proceedings, English - Quantum diffraction and interference of spatially correlated photon pairs and its Fourier-optical analysis
Ryosuke Shimizu; Keiichi Edamatsu; Tadashi Itoh
PHYSICAL REVIEW A, 74, 1, 013801/1-10, Jul. 2006, Peer-reviwed
Scientific journal, English - Generation of entangled photons via biexciton-resonant hyper-parametric scattering
G.Oohata; R. Shimizu; K. Edamatsu
Proc. SPIE, 5721, 15-18, Apr. 2005, Peer-reviwed, Invited
International conference proceedings, English - Entangled-photon generation from biexcitons in a semiconductor
G. Oohata; R. Shimizu; K. Edamatsu
2005 European Quantum Electronics Conference, EQEC '05, 2005, 252, 2005, Peer-reviwed
International conference proceedings, English - Entangled photon generation via biexciton-resonant hyper parametric scattering in a semiconductor
Goro Oohata; Ryosuke Shimizu; Keiichi Edamatsu
IQEC, International Quantum Electronics Conference Proceedings, 2005, 1006-1007, 2005, Peer-reviwed
International conference proceedings, English - Generation of ultraviolet entangled photons in a semiconductor
K Edamatsu; G Oohata; R Shimizu; T Itoh
NATURE, 431, 7005, 167-170, Sep. 2004, Peer-reviwed
Scientific journal, English - Quantum diffraction and interference of spatially correlated photon pairs generated by spontaneous parametric down-conversion
R Shimizu; K Edamatsu; T Itoh
PHYSICAL REVIEW A, 67, 4, 041805(R)/1-4, Apr. 2003, Peer-reviwed
Scientific journal, English - Diffraction and interference of entangled photon pairs generated by parametric down-conversion: A spatial correlation effect
Ryosuke Shimizu; Keiichi Edamatsu; Tadashi Itoh
2003 European Quantum Electronics Conference, EQEC 2003, Institute of Electrical and Electronics Engineers Inc., 341, 2003, Peer-reviwed
International conference proceedings, English - Quantum diffraction and interference of spatially correlated photon pairs generated by spontaneous parametric down-conversion
Ryosuke Shimizu; Keiichi Edamatsu; Tadashi Itoh
Physical Review A - Atomic, Molecular, and Optical Physics, 67, 4, 4, 2003, Peer-reviwed
Scientific journal, English - Measurement of the photonic de Broglie wavelength of entangled photon pairs generated by spontaneous parametric down-conversion
K Edamatsu; R Shimizu; T Itoh
PHYSICAL REVIEW LETTERS, 89, 21, 213601/1-4, Nov. 2002, Peer-reviwed
Scientific journal, English - Quantum diffraction and interference of biphotons generated by parametric down conversion
R. Shimizu; K. Edamatsu; T. Itoh
Conference on Quantum Electronics and Laser Science (QELS) - Technical Digest Series, 74, 30-31, 2002
International conference proceedings, English - Quantum interference and diffraction of parametric down-converted biphotons
R. Shimizu; K. Edamatsu; T Itoh
Pramana-J. Phys., 59, 165-168, 2002, Peer-reviwed, Invited
Scientific journal, English - Measurement of the photonic de Broglie wavelength of parametric down-converted photons using a Mach-Zehnder interferometer
K. Edamatsu; R. Shimizu; T. Itoh
Proc. of the 7th Int. Symp. on Foundations of Quantum Mechanics in the Light of New Technology, 104-107, 2002, Peer-reviwed
International conference proceedings, English - Biphoton interference and photonic de Broglie wavelength of parametric downconverted photons
R. Shimizu; K. Edamatsu; T. Itoh
Technical Digest - Summaries of Papers Presented at the Quantum Electronics and Laser Science Conference, QELS 2001, Institute of Electrical and Electronics Engineers Inc., 69-70, 2001, Peer-reviwed
International conference proceedings, English - Biphoton interferometry to observe photonic de Broglie wavelength
R Shimizu; K Edamatsu; T Itoh
CLEO(R)/PACIFIC RIM 2001, VOL II, TECHNICAL DIGEST, 420-421, 2001, Peer-reviwed
International conference proceedings, English
MISC
- ウィナー・ヒンチン定理の拡張と二光子量子干渉
清水亮介
日本光学会, Jun. 2019, 光学, 46, 6, 214, Japanese, Invited, Introduction scientific journal - 光空間通信における物理レイヤ暗号に向けた通信路推定実験
遠藤寛之; 藤原幹生; 北村光雄; 都筑織衛; 伊藤寿之; 清水亮介; 豊嶋守生; 竹中秀樹; 武岡正裕; 佐々木雅英
情報通信研究機構, 2017, 情報通信研究機構研究報告, 65, 1, 27-34, Japanese, Technical report, 2187-767X, 40021369839, AA12625974 - 2015年日本光学会の研究動向（量子光学・非線形光学）
清水亮介
日本光学会, Apr. 2016, 光学, 45, 4, 130-132, Japanese, Peer-reviwed, Invited, Introduction scientific journal, 0389-6625, 40020828856, AN00080324 - 量子ネットワークの実現に向けた高速量子もつれ交換
清水亮介; 金鋭博; 佐々木雅英
25 Aug. 2015, O plus E, 37, 9, 707-712, Japanese, Invited, Introduction commerce magazine - Nonclassical interference between independent intrinsically pure single photons at telecommunication wavelength (vol 87, 063801, 2013)
Rui-Bo Jin; Kentaro Wakui; Ryosuke Shimizu; Hugo Benichi; Shigehito Miki; Taro Yamashita; Hirotaka Terai; Zhen Wang; Mikio Fujiwara; Masahide Sasaki
Apr. 2014, PHYSICAL REVIEW A, 89, 4, English, Others, 1050-2947, 1094-1622, WOS:000335497500009 - Two-photon interference between independent single photons at telecommunication wavelength
Shimizu R.; Jin R.B.; Wakui K.; Benichi Hugo; Miki S.; Yamashita T.; Terai H.; Wang Z.; Sasaki M.
The Physical Society of Japan (JPS), 26 Aug. 2013, Meeting abstracts of the Physical Society of Japan, 68, 2, 146-146, Japanese, 1342-8349, 110009754656, AA11439205 - Generation of polarization-entangled photon pairs using two-period quasi-phase matched linbo
3
Wakana Ueno; Fumihiro Kaneda; Hirofumi Suzuki; Shigehiro Nagano; Atsushi Syouji; Ryosuke Shimizu; Koji Suizu; Keiichi Edamatsu
01 Dec. 2011, Optics InfoBase Conference Papers, 1761-1763, 84894253168 - 24aED-8 Observation of Activation of Bound Entanglement
Kaneda F.; Shimizu R.; Ishizaka S.; Mitsumori Y.; Kosaka H.; Edamatsu K.
The Physical Society of Japan (JPS), 24 Aug. 2011, Meeting abstracts of the Physical Society of Japan, 66, 2, 187-187, Japanese, 1342-8349, 110008757906, AA11439205 - 25pRF-9 Generation of Smolin state using photon polarization qubits
Kaneda F.; Shimizu R.; Mitsumori Y.; Kosaka H.; Edamatsu K.
The Physical Society of Japan (JPS), 18 Aug. 2010, Meeting abstracts of the Physical Society of Japan, 65, 2, 156-156, Japanese, 1342-8349, 110008097031, AA11439205 - 25pRF-8 Non-classical interference of up-converted photon pairs
Syouji A.; Nagano S.; Shimizu R.; Suizu K.; Edamatsu K.
The Physical Society of Japan (JPS), 18 Aug. 2010, Meeting abstracts of the Physical Society of Japan, 65, 2, 155-155, Japanese, 1342-8349, 110008097030, AA11439205 - 20pTD-8 Observation of two-photon quantum beating with two poling period LiNbO_3
Kaneda F.; Suzuki H.; Shimizu R.; Shouji A.; Nagano S.; Suizu K.; Edamatsu K.
The Physical Society of Japan (JPS), 01 Mar. 2010, Meeting abstracts of the Physical Society of Japan, 65, 1, 173-173, Japanese, 1342-8349, 110007654432, AA11439205 - 20pTD-6 Two-photon interference with controlled frequency-entangled photons
Shimizu R.; Edamatsu K.
The Physical Society of Japan (JPS), 01 Mar. 2010, Meeting abstracts of the Physical Society of Japan, 65, 1, 172-172, Japanese, 1342-8349, 110007654430, AA11439205 - 26aZF-3 Up-conversion detection of 1550 nm photon pair using a periodically poled LiNbO_3
Syouji A.; Ueno W.; Nagano S.; Shimizu R.; Suizu K.; Edamatsu K.
The Physical Society of Japan (JPS), 18 Aug. 2009, Meeting abstracts of the Physical Society of Japan, 64, 2, 69-69, Japanese, 1342-8349, 110007496216, AA11439205 - 25aZF-9 Generation of biphotons with controlled frequency entanglement
Shimizu R.; Edamatsu K.
The Physical Society of Japan (JPS), 18 Aug. 2009, Meeting abstracts of the Physical Society of Japan, 64, 2, 57-57, Japanese, 1342-8349, 110007496166, AA11439205 - 25pZF-9 Observation of four-photon interference utilizing parametric down-conversion driven by an Yb laser
Kaneda F.; Shimizu R.; Mitsumori Y.; Kosaka H.; Edamatsu K.
The Physical Society of Japan (JPS), 18 Aug. 2009, Meeting abstracts of the Physical Society of Japan, 64, 2, 63-63, Japanese, 1342-8349, 110007496192, AA11439205 - 28aSD-3 Efficient generation of multi-photon entangled state by a Yb laser
Kaneda F.; Shimizu R.; Mitsumori Y.; Kosaka H.; Edamatsu K.
The Physical Society of Japan (JPS), 03 Mar. 2009, Meeting abstracts of the Physical Society of Japan, 64, 1, 149-149, Japanese, 1342-8349, 110007370244, AA11439205 - 27pSK-3 High efficient up-conversion of 1550nm photons using a periodically poled LiNbO_3
Syouji A.; Nagano S.; Shimizu R.; Suizu K.; Edamatsu K.
The Physical Society of Japan (JPS), 03 Mar. 2009, Meeting abstracts of the Physical Society of Japan, 64, 1, 142-142, Japanese, 1342-8349, 110007370218, AA11439205 - 量子リソグラフィー －量子もつれ光子対の回折と干渉－
清水亮介
日本工業出版, 2009, 光アライアンス, 20, 10, 10-14, Japanese, Invited, Introduction commerce magazine, 0917-026X, 40016840029, AA11758790 - 22pZA-9 Improvement of coincidence/accidental contrast of correlated photon pairs from a photonic crystal fiber using a high-repetition pump
Matsuda N.; Sergej M.; Matsuura S.; Shimizu R.; Mitsumori Y.; Kosaka H.; Edamatsu K.
The Physical Society of Japan (JPS), 25 Aug. 2008, Meeting abstracts of the Physical Society of Japan, 63, 2, 141-141, Japanese, 1342-8349, 110006982904, AA11439205 - 22pZA-10 Up-conversion of parametric fluorescence using a periodically poled LiNbO_3
Syouji A.; Nagano S.; Shimizu R.; Suizu K.; Edamatsu K.
The Physical Society of Japan (JPS), 25 Aug. 2008, Meeting abstracts of the Physical Society of Japan, 63, 2, 141-141, Japanese, 1342-8349, 110006982905, AA11439205 - 22pZA-8 Generation of polarization entangled photon pairs using PPLN under the type-II phase matching condition
Suzuki H.; Nagano S.; Syouji A.; Shimizu R.; Suizu K.; Edamatsu K.
The Physical Society of Japan (JPS), 25 Aug. 2008, Meeting abstracts of the Physical Society of Japan, 63, 2, 141-141, Japanese, 1342-8349, 110006982903, AA11439205 - 23pQD-7 Measurement of few-photon-induced nonlinear phase shifts in a photonic crystal fiber II
Matsuda N.; Shimizu R.; Mitsumori Y.; Kosaka H.; Edamatsu K.
The Physical Society of Japan (JPS), 29 Feb. 2008, Meeting abstracts of the Physical Society of Japan, 63, 1, 150-150, Japanese, 1342-8349, 110007191729, AA11439205 - 24aRH-3 Generation of polarization entangled photon pairs using PPLN under the near-collinear type-II phase-matching condition II
Shimizu R.; Sugiura Y.; Nagano S.; Suizu K.; Edamatsu K.
The Physical Society of Japan (JPS), 21 Aug. 2007, Meeting abstracts of the Physical Society of Japan, 62, 2, 198-198, Japanese, 1342-8349, 110007143314, AA11439205 - 24aRH-2 Generation of polarization entangled photon pairs utilizing a spatial correlation effect in spontaneous parametric down-conversion III
Yamaguchi T.; Shimizu R.; Nagano S.; Suizu K.; Mitsumori Y.; Kosaka H.; Edamatsu K.
The Physical Society of Japan (JPS), 21 Aug. 2007, Meeting abstracts of the Physical Society of Japan, 62, 2, 197-197, Japanese, 1342-8349, 110007143315, AA11439205 - 24aRH-1 Measurement of few-photon-induced nonlinear phase shifts in a photonic crystal fiber
Matsuda N.; Shimizu R.; Mitsumori Y.; Kosaka H.; Edamatsu K.
The Physical Society of Japan (JPS), 21 Aug. 2007, Meeting abstracts of the Physical Society of Japan, 62, 2, 197-197, Japanese, 1342-8349, 110007143316, AA11439205 - 24pRG-2 1550nm band photon pair generation via parametric down conversion using a periodically poled LiNbO_3
Syouji A.; Nagano S.; Shimizu R.; Suizu K.; Edamatsu K.
The Physical Society of Japan (JPS), 21 Aug. 2007, Meeting abstracts of the Physical Society of Japan, 62, 2, 201-201, Japanese, 1342-8349, 110007143303, AA11439205 - 21pXK-7 Generation of polarization entangled photon pairs using PPLN under the near-collinear Type-II phase matching condition
Sugiura Y.; Shimizu R.; Edamatsu K.; Nagano S.; Sugiyama T.; Suizu K.; Ito H.
The Physical Society of Japan (JPS), 28 Feb. 2007, Meeting abstracts of the Physical Society of Japan, 62, 1, 177-177, Japanese, 1342-8349, 110007193517, AA11439205 - 25aRB-7 Measurement of small phase shifts with a polarization-division Sagnac interferometer
Matsuda N.; Shimizu R.; Mitsumori Y.; Kosaka H.; Edamatsu K.
The Physical Society of Japan (JPS), 18 Aug. 2006, Meeting abstracts of the Physical Society of Japan, 61, 2, 110-110, Japanese, 1342-8349, 110007178537, AA11439205 - 27aTA-13 Measurement of nonlinear phase shifts in a photonic crystal fiber using a polarization Sagnac interferometer
Matsuda Nobuyuki; Shimizu Ryosuke; Mitsumori Yasuyoshi; Kosaka Hideo; Edamatsu Keiichi
The Physical Society of Japan (JPS), 04 Mar. 2006, Meeting abstracts of the Physical Society of Japan, 61, 1, 136-136, Japanese, 1342-8349, 110007177230, AA11439205 - 30pSA-7 Generation of polarization entangled photon pairs utilizing a spatial correlation effect in spontaneous parametric down-conversion
Shimizu R.; Yamaguchi T.; Mitsumori Y.; Kosaka H.; Edamatsu K.
The Physical Society of Japan (JPS), 04 Mar. 2006, Meeting abstracts of the Physical Society of Japan, 61, 1, 187-187, Japanese, 1342-8349, 110007181281, AA11439205 - 量子もつれ光子対の干渉と回折
清水亮介; 枝松圭一
日本オプトメカトロニクス協会, 2006, 光技術コンタクト, 44, 11, 646-654, Japanese, Invited, Introduction commerce magazine, 0913-7289, 40015194076, AN10075091 - 21pWA-4 Generation of entangled photon pairs in a semiconductor II : Violation of Bell's inequality
Oohata Goro; Shimizu Ryosuke; Edamatsu Keiichi
The Physical Society of Japan (JPS), 19 Aug. 2005, Meeting abstracts of the Physical Society of Japan, 60, 2, 75-75, Japanese, 1342-8349, 110004537753, AA11439205 - 量子もつれ光子対
枝松圭一; 大畠悟郎; 清水亮介
日本オプトメカトロニクス協会, 2005, 光技術コンタクト, 43, 7, 376-383, Japanese, Invited, Introduction commerce magazine, 0913-7289, 40006861152, AN10075091 - 量子もつれ光子対と量子干渉実験
枝松圭一; 大畠悟郎; 清水亮介
新技術コミュニケ-ションズ, 2005, O plus E, 27, 6, 622-628, Japanese, Invited, Introduction commerce magazine, 0911-5943, 40006789812, AN00360954 - 12pXC-1 Observation of entangled photon pairs generated from biexciton state
Oohata G.; Shimizu R.; Edamatsu K.; Itoh T.
The Physical Society of Japan (JPS), 25 Aug. 2004, Meeting abstracts of the Physical Society of Japan, 59, 2, 637-637, Japanese, 1342-8349, 110002048455, AA11439205 - 29pXG-10 Generation of entangled photon pairs in a semiconductor
Oohata G.; Shimizu R.; Edamatsu K.; Itoh T.
The Physical Society of Japan (JPS), 03 Mar. 2004, Meeting abstracts of the Physical Society of Japan, 59, 1, 186-186, Japanese, 1342-8349, 110002186566, AA11439205 - 量子もつれ光子対の回折・干渉と量子リソグラフィー
清水亮介; 枝松圭一
応用物理学会分科会日本光学会, 2004, 光学, 33, 5, 291-293, Japanese, Peer-reviwed, Invited, Introduction scientific journal, 0389-6625, 10012945943, AN00080324 - Quantum diffraction-interference experiments using parametric down-converted photon pairs
Edamatsu K.; Shimizu R.
The Physical Society of Japan (JPS), 15 Aug. 2003, Meeting abstracts of the Physical Society of Japan, 58, 2, 858-858, Japanese, 1342-8349, 110002064616, AA11439205 - Phase measurement in two-photon interference of parametric down-converted photon pairs
Edamatsu K.; Shimizu R.
The Physical Society of Japan (JPS), 06 Mar. 2003, Meeting abstracts of the Physical Society of Japan, 58, 1, 168-168, Japanese, 1342-8349, 110002213280, AA11439205 - 非線形光学結晶を用いた量子もつれ合い光子対の発生と二光子干渉
枝松圭一; 清水亮介
アグネ技術センタ-, 2003, 固体物理, 38, 7, 471-477, Japanese, Invited, Introduction commerce magazine, 0454-4544, 40005854472, AN00092629 - Diffraction-interference of parametric down-converted biphotons : spatial correlation effect
Shimizu R; Edamatsu K; Itoh T
The Physical Society of Japan (JPS), 13 Aug. 2002, Meeting abstracts of the Physical Society of Japan, 57, 2, 116-116, Japanese, 1342-8349, 110009720176, AA11439205 - 24pWM-10 Diffraction-interference of parametric down-converted biphotons
Shimizu R.; Edamatsu K.; Itoh T.
The Physical Society of Japan (JPS), 01 Mar. 2002, Meeting abstracts of the Physical Society of Japan, 57, 1, 119-119, English, 1342-8349, 110009770726, AA11439205 - Biphoton interference using parametric down-converted photon I
Edamatsu K.; Shimizu R.
The Physical Society of Japan (JPS), 10 Sep. 2000, Meeting abstracts of the Physical Society of Japan, 55, 2, 100-100, Japanese, 1342-8349, 110002187641, AA11439205
Books and other publications
Lectures, oral presentations, etc.
- Fourier synthesis and ultrafast detection of time-frequency entangled biphotons
Ryosuke Shimizu
Invited oral presentation, English, Conference on Lasers and Electro-Optics (CLEO2025), Invited, Peer-reviewed
08 May 2025
04 May 2025- 09 May 2025 - Frequency-bin state generation of entangled photons via Fourier optical synthesis
Tomoya Okita; Yuta Fujihashi; Masahiro Yabuno; Hirotaka Terai; Shigehito Miki; Rui-Bo Jin; Ryosuke Shimizu
Poster presentation, English, Conference on Lasers and Electro-Optics (CLEO2025), Peer-reviewed
07 May 2025
04 May 2025- 09 May 2025 - Hybrid biphoton spectrometer for spectral measurement of visible-NIR entangled photon pairs
Koya Onoda; Ozora Iso; Masahiro Yabuno; Hirotaka Terai; Shigehito Miki; Ryosuke Shimizu
Poster presentation, English, The 14th Advanced Lasers and Photon Sources (ALPS2025), Peer-reviewed
23 Apr. 2025
21 Apr. 2025- 25 Apr. 2025 - 遅延線型単一光子検出器用いた周波数領域での偏光量子もつれ状態の測定
磯大空; 藤橋裕太; 宮島顕祐; 清水亮介
Oral presentation, Japanese, 第72回応用物理学会春季学術講演会
15 Mar. 2025
14 Mar. 2025- 17 Mar. 2025 - 量子もつれ光子対を用いた二次元蛍光分光の理論的研究
藤橋裕太; 磯大空; 清水亮介; 石崎章仁
Oral presentation, Japanese, 第72回応用物理学会春季学術講演会
14 Mar. 2025- 17 Mar. 2025 - Spectrally resolved detection of polarization-entangled state with delay-line-anode single-photon imagers
Ozora Iso; Yuta Fujihashi; Kensuke Miyajima; Ryosuke Shimizu
Oral presentation, English, Optics & Photonics Japan（OPJ）2024, Peer-reviewed
30 Nov. 2024
29 Nov. 2024- 01 Dec. 2024 - 二波長同期光コムを用いた非同期光サンプリングによる単一光子レベル超高速パルス特性評価法の開発
小森孟; 清水亮介; 美濃島薫
Oral presentation, Japanese, Optics & Photonics Japan（OPJ）2024, Peer-reviewed
29 Nov. 2024
29 Nov. 2024- 01 Dec. 2024 - 光ゲート法による２光子波束の直接観測
桑名隆久; 藪野正裕; 寺井弘高; 三木茂人; 清水亮介
Oral presentation, Japanese, Optics & Photonics Japan（OPJ）2024, Peer-reviewed
29 Nov. 2024
29 Nov. 2024- 01 Dec. 2024 - Detecting hyperentangled biphotons in frequency and polarization with delay-line-anode single-photon imager
Ozora Iso; Yuta Fujihashi; Kensuke Miyajima; Ryosuke Shimizu
Poster presentation, English, Single Photon Workshop 2024, Peer-reviewed
20 Nov. 2024
18 Nov. 2024- 22 Nov. 2024 - Spectrally resolved density matrix measurement with delay-line-anode single-photon imagers
Ozora Iso; Yuta Fujihashi; Kensuke Miyajima; Ryosuke Shimizu
Poster presentation, English, Quantum Innovation 2024
22 Oct. 2024
21 Oct. 2024- 23 Oct. 2024 - Polarization-entangled photon source for wavelength-division multiplexing
Tomoya Okita; Yuki Okura; Yuta Fujihashi; Masahiro Yabuno; Hirotaka Terai; Shigehito Miki; Rui-Bo Jin; Ryosuke Shimizu
Poster presentation, English, Quantum Innovation 2024
22 Oct. 2024
21 Oct. 2024- 23 Oct. 2024 - Observation of an anisotropic dispersion effect in frequency-entangled photons
Takahisa Kuwana; Masahiro Yabuno; Shigehito; Hirotaka Terai; Miki; Peter J. Mosley; Rui-Bo Jin; Ryosuke Shimizu
Poster presentation, English, Quantum Innovation 2024
22 Oct. 2024
21 Oct. 2024- 23 Oct. 2024 - 実環境ファイバ伝送を介した周波数もつれ光子による非局所相関を用いた量子分光ファイバセンシング
石関政洋; 大北智也; 浅原彰文; 清水亮介; 美濃島薫
Oral presentation, Japanese, 第85回応用物理学会秋季学術講演会
19 Sep. 2024
16 Sep. 2024- 19 Sep. 2024 - 光カーゲート法による超高速タイムビン状態の観測
桑名隆久; 藪野正裕; 寺井弘高; 三木茂人; 清水亮介
Oral presentation, Japanese, 日本物理学会第79回年次大会
18 Sep. 2024
16 Sep. 2024- 19 Sep. 2024 - 単一光子検出カメラを用いた量子もつれ光子対の周波数分解測定
磯大空; 藤橋裕太; 宮島顕祐; 清水亮介
Japanese, 日本物理学会第79回年次大会
18 Sep. 2024
16 Sep. 2024- 19 Sep. 2024 - 量子もつれ光子対を用いた時間分解蛍光分光の理論的研究
藤橋裕太; 磯大空; 石崎章仁; 清水亮介
Oral presentation, Japanese, 日本物理学会第79回年次大会
18 Sep. 2024
16 Sep. 2024- 19 Sep. 2024 - Quantum Spectroscopy using 2D Spectrum of Telecom-band Frequency Entangled Photons for Quantum Remote Sensing
Masahiro Ishizeki; Takeru Naito; Takahisa Kuwana; Akifumi Asahara; Ryosuke Shimizu; Kaoru Minoshima
Oral presentation, English, The 13th Advanced Lasers and Photon Sources (ALPS2024), Peer-reviewed
25 Apr. 2024
22 Apr. 2024- 26 Apr. 2024 - Measurement of detailed single-photon ultra-fast pulse characteristics by asynchronous optical sampling using a dual-wavelength combs
Hajime Komori; Prasad Koviri; Masahiro Ishizeki; Haochen Tian; Thomas R Schibli; Takashi Kato; Akifumi Asahara; Ryosuke Shimizu; Kaoru Minoshima
Oral presentation, English, The 13th Advanced Lasers and Photon Sources (ALPS2024), Peer-reviewed
25 Apr. 2024
22 Apr. 2024- 26 Apr. 2024 - Pathway selectivity in time-resolved spectroscopy by coincidence counting of quantum entangled photons
Yuta Fujihashi; Akihito Ishizaki; Ryosuke Shimizu
Oral presentation, English, The 13th Advanced Lasers and Photon Sources (ALPS2024), Peer-reviewed
25 Apr. 2024
22 Apr. 2024- 26 Apr. 2024 - Biphoton spectral reconstruction with delay-line-anode single-photon imagers
Ozora Iso; Kensuke Miyajima; Ryosuke Shimizu
Oral presentation, English, The 13th Advanced Lasers and Photon Sources (ALPS2024), Peer-reviewed
25 Apr. 2024
22 Apr. 2024- 26 Apr. 2024 - 実環境下における量子リモートセンシングに向けた周波数もつれ光子の非局所相関による量子分光法の開発
石関政洋; 大倉悠暉; 浅原彰文; 清水亮介; 美濃島薫
Oral presentation, Japanese, 第71回応用物理学会春季学術講演会
25 Mar. 2024
22 Mar. 2024- 25 Mar. 2024 - 遅延線型単一光子検出器を用いた二光子スペクトルの測定
磯大空; 宮島顕祐; 清水亮介
Oral presentation, Japanese, 第71回応用物理学会春季学術講演会
25 Mar. 2024
22 Mar. 2024- 25 Mar. 2024 - 分極反転デバイスによる時間-周波数量子もつれ光の操作と検出
清水亮介
Invited oral presentation, Japanese, 第71回応用物理学会春季学術講演会, Invited
23 Mar. 2024
22 Mar. 2024- 25 Mar. 2024 - Spectral modulation by temporal manipulation of a biphoton wave packet
Yuki Okura; Masahiro Yabuno; Fumihiro China; Shigehito Miki; Hirotaka Terai; Ryosuke Shimizu
Poster presentation, English, Quantum Innovation 2023
16 Nov. 2023
15 Nov. 2023- 17 Nov. 2023 - Biphoton spectral measurement with delay-line-anode single-photon detectors
Ozora Iso; Kensuke Miyajima; Ryosuke Shimizu
Poster presentation, English, Quantum Innovation 2023
16 Nov. 2023
15 Nov. 2023- 17 Nov. 2023 - 二波長同期光コムを用いた非同期光サンプリングによる単一光子レベルのフェムト秒時間分解計測法の開発
小森孟; Prasad Koviri; 石関政洋; 田 昊晨; Thomas R. Schibli; 加藤 峰士; 浅原 彰文; 清水 亮介; 美濃島 薫
Japanese, 第84回応用物理学会秋季学術講演会
21 Sep. 2023
19 Sep. 2023- 23 Sep. 2023 - 光ゲート法による超高速単一光子検出器の時間分解能評価
桑名隆久; 藪野正裕; 知名史博; 三木茂人; 寺井弘高; 清水亮介
Oral presentation, Japanese, 日本物理学会第78回年次大会
18 Sep. 2023
16 Sep. 2023- 19 Sep. 2023 - 量子もつれ光子の時間操作によるスペクトル変調III
大倉悠暉; 内藤健; 藪野正裕; 知名史博; 三木茂人; 寺井弘高; 清水亮介
Oral presentation, Japanese, 日本物理学会第78回年次大会
18 Sep. 2023
16 Sep. 2023- 19 Sep. 2023 - Quantum optical synthesis of a biphoton wave packet
Ryosuke Shimizu
Invited oral presentation, English, Progress in Electromagnetics Research Symposium (PIERS2023), Invited, Peer-reviewed
04 Jul. 2023
03 Jul. 2023- 06 Jul. 2023 - Direct measurement of biphoton temporal distributions with sub-ps resolution by optical Kerr Gating
Takahisa Kuwana; Masahiro Yabuno; Fumihiro China; Shigehito Miki; Hirotaka Terai; Peter J. Mosley; Rui-Bo Jin; Ryosuke Shimizu
Oral presentation, English, Progress in Electromagnetics Research Symposium (PIERS2023), Peer-reviewed
04 Jul. 2023
03 Jul. 2023- 06 Jul. 2023 - 分光計測としての量子もつれ光研究
清水亮介
Invited oral presentation, Japanese, 量子生命科学会第５回大会, Invited
18 May 2023
18 May 2023- 19 May 2023 - Measurement of biphoton temporal distribution using an optical Kerr gate
Takahisa Kuwana; Masahiro Yabuno; Fumihiro China; Shigehito Miki; Hirotaka Terai; Peter J. Mosley; Rui-Bo Jin; Ryosuke Shimizu
Oral presentation, English, The 12th Advanced Lasers and Photon Sources (ALPS2023), Peer-reviewed
20 Apr. 2023
18 Apr. 2023- 21 Apr. 2023 - Spectral modulation by temporal manipulation of a biphoton wave packet
Yuki Okura; Takeru Naito; Masahiro Yabuno; Fumihiro China; Shigehito Miki; Hirotaka Terai; Ryosuke Shimizu
Oral presentation, English, The 12th Advanced Lasers and Photon Sources (ALPS2023), Peer-reviewed
19 Apr. 2023
18 Apr. 2023- 21 Apr. 2023 - Ultrafast Time-resolved Single-photon Detection Method Using Two-color Asynchronous Optical Sampling
Prasad Koviri; Hajime Komori; Masahiro Ishizeki; Haochen Tian; Thomas R. Schibli; Takashi Kato; Akifumi Asahara; Ryosuke Shimizu; Kaoru Minoshima
Oral presentation, English, The 12th Advanced Lasers and Photon Sources (ALPS2023), Peer-reviewed
Apr. 2023
18 Apr. 2023- 21 Apr. 2023 - Fundamental study on quantum remote sensing using nonlocal correlation of frequency entangled photon pair generated by ultrashort pulse train for fiber network applications
Masahiro Ishizeki; Takeru Naito; Takahisa Kuwana; Akifumi Asahara; Ryosuke Shimizu; Kaoru Minoshima
The 12th Advanced Lasers and Photon Sources (ALPS2023), Peer-reviewed
Apr. 2023
18 Apr. 2023- 21 Apr. 2023 - 光カーゲート法による2光子時間分布測定II
桑名隆久; 藪野正裕; 知名史博; 三木茂人; 寺井弘高; 清水亮介
Oral presentation, Japanese, 日本物理学会2023年春季大会
24 Mar. 2023
22 Mar. 2023- 25 Mar. 2023 - 量子もつれ光子の時間操作によるスペクトル変調II
大倉悠暉; 内藤健; 藪野正裕; 知名史博; 三木茂人; 寺井弘高; 清水亮介
Oral presentation, Japanese, 日本物理学会2023年春季大会
24 Mar. 2023
22 Mar. 2023- 25 Mar. 2023 - 量子もつれ光子の非局所相関を利用したリモートセンシングに向けた周波数相関スペクトル測定の基礎検討
石関 政洋; 内藤 健; 桑名 隆久; 浅原 彰文; 清水 亮介; 美濃島 薫
Oral presentation, Japanese, 第70回応用物理学会春季学術講演会
Mar. 2023
15 Mar. 2023- 18 Mar. 2023 - Frequency-bin generation of entangled photons via quantum optical synthesis
Takeru Naito; Masahiro Yabuno; Fumihiro China; Shigehito Miki; Hirotaka Terai; Ryosuke Shimizu
Oral presentation, English, The 5th. International Forum on Quantum Metrology and Sensing (IFQMS)
29 Nov. 2022 - Ultrafast measurement of biphoton wave packets using optical Kerr gating
Takahisa Kuwana; Masahiro Yabuno; Fumihiro China; Shigehito Miki; Hirotaka Terai; Peter J. Mosley; Rui-Bo Jin; Ryosuke Shimizu
Oral presentation, English, The 5th. International Forum on Quantum Metrology and Sensing (IFQMS)
29 Nov. 2022 - ファイバネットワーク応用に向けたモード同期レーザーにより生成された伝令付き単一光子の伝送実験
石関政洋; 桑名; 浅原彰文; 清水亮介; 美濃島薫
Oral presentation, Japanese, 第5回レーザー学会「次世代ファイバレーザー技術」専門委員会
23 Sep. 2022 - Detection of Ultralow Intense Cross-correlation of Two-color Comb with Photon Counting Technique
Koviri, 石関; Tian, 小森; 浅原; 清水; 美濃島
Oral presentation, English, 第5回レーザー学会「次世代ファイバレーザー技術」専門委員会
23 Sep. 2022 - 超短パルスにより生成された伝令付き単一光子のファイバネットワーク伝送実験
石関政洋; 桑名; 浅原彰文; 清水亮介; 美濃島薫
Oral presentation, Japanese, 第83回応用物理学会秋季学術講演会
22 Sep. 2022 - Single-photon Level Detection of Ultrafast Cross-correlation Signal using Asynchronous Optical Sampling with Two-color Dual-comb System
Koviri, 石関; Tian, 小森; 浅原; 清水; 美濃島
Oral presentation, English, 第83回応用物理学会秋季学術講演会
22 Sep. 2022 - 光カーゲート法による2光子時間分布測定
桑名隆久; 藪野正裕; 知名史博; 三木茂人; 寺井弘高; 清水亮介
Oral presentation, Japanese, 日本物理学会2022年秋季大会, Domestic conference
13 Sep. 2022 - 量子もつれ光子の時間操作によるスペクトル変調
内藤健; 藪野正裕; 知名史博; 三木茂人; 寺井弘高; 清水亮介
Oral presentation, Japanese, 日本物理学会2022年秋季大会, Domestic conference
13 Sep. 2022 - 励起子分子発光の量子分光計測：2光子吸収スペクトルとの比較
関浩弥; 橋本慶太; 石原淳; 宮島顕祐; 清水亮介
Oral presentation, Japanese, 日本物理学会2022年秋季大会, Domestic conference
12 Sep. 2022 - Polarization Multiplexing of an Ultrafast Single-Photon Detector by Optical Kerr Gating
Takahisa Kuwana; Masahiro Yabuno; Fumihiro China; Shigehito Miki; Hirotaka Terai; Peter J. Mosley; Rui-Bo Jin; Ryosuke Shimizu
Oral presentation, English, The 15th Pacific Rim Conference on Lasers and Electro-Optics (CLEO-PR 2022), International conference
05 Aug. 2022 - Spectral modulation of biphotons via Fourier optical synthesis
Takeru Naito; Masahiro Yabuno; Fumihiro China; Shigehito Miki; Hirotaka Terai; Ryosuke Shimizu
Oral presentation, English, The 15th Pacific Rim Conference on Lasers and Electro-Optics (CLEO-PR 2022), International conference
04 Aug. 2022 - Temperature dependence of biexciton luminescence by joint spectral intensity measurement
Hiroya Seki; Keita Hashimoto; Jun Ishihara; Kensuke Miyajima; Ryosuke Shimizu
Poster presentation, English, The 15th Pacific Rim Conference on Lasers and Electro-Optics (CLEO-PR 2022), International conference
04 Aug. 2022 - Spectro-temporal Manipulation of Biphoton States at Telecom Wavelength
Rui-Bo Jin; Ryosuke Shimizu
Invited oral presentation, English, Progress in Electromagnetics Research Symposium (PIERS2021), Invited, Hangzhou, China, International conference
25 Apr. 2022 - 励起子分子から生成された2光子に対する量子もつれの温度依存性
関浩弥; 橋本慶太; 石原淳; 宮島顕祐; 清水亮介
Oral presentation, Japanese, 日本物理学会第７６回年次大会, Domestic conference
17 Mar. 2022 - 光カーゲート法を用いた超高速単一光子検出の偏光多重化
桑名隆久; 大島拡輝; 藪野正裕; 知名史博; 三木茂人; 寺井弘高; 清水亮介
Oral presentation, Japanese, 日本物理学会第７６回年次大会, Domestic conference
17 Mar. 2022 - Selective measurement of biexciton luminescence by photon correlation spectroscopy
Hiroya Seki; Keita Hashimoto; Jun Ishihara; Kensuke Miyajima; Ryosuke Shimizu
Oral presentation, English, The 4th. International Forum on Quantum Metrology and Sensing (IFQMS2021), International conference
08 Dec. 2021 - Temporal shaping of an entangled-photon wave packet by Fourier optical synthesis
Hiroki Oshima; Fumihiro China; Masahiro Yabuno; Shigehito Miki; Hirotaka Terai; Ryosuke Shimizu
Oral presentation, English, The 4th. International Forum on Quantum Metrology and Sensing (IFQMS2021), International conference
08 Dec. 2021 - Phase retrieval of joint spectral amplitude
Kemeng Chen; Ryosuke Shimizu
Oral presentation, English, The 4th. International Forum on Quantum Metrology and Sensing (IFQMS2021), International conference
08 Dec. 2021 - フーリエ操作による量子もつれ光子の時間波束制御
大島拡輝; 藪野正裕; 知名史博; 三木茂人; 寺井弘高; 清水亮介
Oral presentation, Japanese, 日本物理学会2021年秋季大会, Domestic conference
20 Sep. 2021 - 空間分解能を有する2光子検出装置の開発
陳柯萌; 清水亮介
Oral presentation, Japanese, 日本物理学会2021年秋季大会
20 Sep. 2021 - 光コムによる量子もつれ光子生成と時間分解検出法の検討
佐久間茂喜; 大島拡輝; 長谷川達也; 浅原彰文; 清水亮介; 美濃島薫
Oral presentation, Japanese, 第82回応用物理学会秋季学術講演会, Domestic conference
10 Sep. 2021 - Joint spectral intensity of two-photon emission from biexciton
Hiroya Seki; Dongeun Son; Yuta Uchibori; Jun Ishihara; Kensuke Miyajima; Ryosuke Shimizu
Oral presentation, English, The 10th Advanced Lasers and Photon Sources (ALPS2021), International conference
19 Apr. 2021 - 量子もつれ光子対スペクトルの散乱角度依存性II
関浩弥; 孫東根; 内堀裕太; 石原淳; 宮島顕祐; 清水亮介
Oral presentation, Japanese, 日本物理学会第７６回年次大会, Domestic conference
13 Mar. 2021 - 機械共有による受動相互コヒーレントな全偏波保持ファイバコムシステムの開発
楠美友悟; 長谷川達也; 佐久間茂喜; 中嶋善晶; 清水亮介; 美濃島薫
Oral presentation, Japanese, レーザー学会学術講演会第４１回年次大会, Domestic conference
20 Jan. 2021 - Development of single-photon detectors with spatial resolution
Kemeng Chen; Ryosuke Shimizu
Oral presentation, English, The 3rd International Forum on Quantum Metrology and Sensing (IFQMS), International conference
17 Dec. 2020 - Temperature dependence of photon-pair generation via biexciton
Donggeun Son; Hiroya Seki; Yuta Uchibori; Jun Ishihara; Kensuke Miyajima; Ryosuke Shimizu
Oral presentation, English, The 3rd International Forum on Quantum Metrology and Sensing (IFQMS), International conference
17 Dec. 2020 - Angular dependence of photon-pair generation via biexciton
Hiroya Seki; Donggeun Son; Yuta Uchibori; Jun Ishihara; Kensuke Miyajima; Ryosuke Shimizu
Oral presentation, English, The 3rd International Forum on Quantum Metrology and Sensing (IFQMS), International conference
17 Dec. 2020 - 量子もつれ光子対スペクトルの温度依存性
孫東根; 関浩弥; 内堀裕太; 石原淳; 宮島顕祐; 清水亮介
Oral presentation, Japanese, 日本物理学会2020年秋季大会, Domestic conference
10 Sep. 2020 - 量子もつれ光子対スペクトルの散乱角度依存性
関浩弥; 内堀裕太; 石原淳; 宮島顕祐; 清水亮介
Oral presentation, Japanese, 日本物理学会2020年秋季大会, Domestic conference
10 Sep. 2020 - Quantum optical synthesis of time-frequency entangled photons
Ryosuke Shimizu
Invited oral presentation, English, The 9th Advanced Lasers and Photon Sources (ALPS2020), Invited, International conference
20 Apr. 2020 - Fourier transform spectroscopy utilizing two-photon quantum interference
Hiroya Seki; Yuta Uchibori; Jun Ishihara; Kensuke Miyajima; Ryosuke Shimizu
Oral presentation, English, The 9th Advanced Lasers and Photon Sources (ALPS2020), International conference
20 Apr. 2020 - 励起子分子から生成された光子対の二次元量子分光II
孫東根; 関浩弥; 内堀裕太; 石原淳; 宮島顕祐; 清水亮介
Poster presentation, Japanese, 日本物理学会 第７５回年次大会, Domestic conference
Mar. 2020 - ２台のファイバコムによる２波長パルスの高精度同期法の検討
長谷川達也; 中嶋善晶; 李嘉傑; 清水亮介; 美濃島薫
Poster presentation, Japanese, 第６７回応用物理学会春季学術講演会, Domestic conference
Mar. 2020 - 和周波発生法による単一光子の超高速検出
坂田美紗樹; 田沢久留実; 知名史博; 藪野正裕; 三木茂人; 寺井弘高; 清水亮介
Oral presentation, Japanese, レーザー学会学術講演会第４０回年次大会, Domestic conference
22 Jan. 2020 - Direct measurement of a biphoton wave packet in time and frequency domains
Ryosuke Shimizu; Rui-Bo Jin
Oral presentation, English, The 2nd International Forum on Quantum Metrology and Sensing (IFQMS), International conference
18 Dec. 2019 - Fourier transform spectroscopy of biexciton with two-photon quantum interference
Hiroya Seki; Yuta Uchihori; Jun Ishihara; Kensuke Miyajima; Ryosuke Shimizu
Poster presentation, English, The 2nd International Forum on Quantum Metrology and Sensing (IFQMS), International conference
17 Dec. 2019 - Temporal shaping of a biphoton wave packet by 2D Fourier synthesis
Kurumi Tazawa; Fumihiro China; Masahiro Yabuno; Shigehito Miki; Hirotaka Terai; Ryosuke Shimizu
Poster presentation, English, The 2nd International Forum on Quantum Metrology and Sensing (IFQMS), International conference
17 Dec. 2019 - Development of ultrafast single-photon detection using an optical Kerr gate
Takahiro Takumi; Masahiro Yabuno; Shigehito Miki; Fumihiro China; Hirotaka Terai; Ryosuke Shimizu
Poster presentation, English, The 2nd International Forum on Quantum Metrology and Sensing (IFQMS), International conference
17 Dec. 2019 - Time-frequency duality of biphotons
Ryosuke Shimizu
Nominated symposium, English, Informal workshop at the Molecular Chirality Research Centre (MCRC), Invited
10 Oct. 2019 - Time-resolved measurement of a single-photon wave packet with an optical Kerr effect
Takahiro Takumi; Fumihiro China; Masahiro Yabuno; Shigehito Miki; Hirotaka Terai; Ryosuke Shimizu
Oral presentation, English, Single Photon Workshop 2019, International conference
Oct. 2019 - Quantum interference of photon pairs from biexciton toward Fourier transform spectroscopy
Hiroya Seki; Yuta Uchihori; Satoru Efumi; Jun Ishihara; Kensuke Miyajima; Ryosuke Shimizu
Poster presentation, English, Single Photon Workshop 2019, International conference
Oct. 2019 - 2光子スペクトル制御による単一光子の時間波束制御
坂田美紗樹; 田沢久留実; 知名史博; 藪野正裕; 三木茂人; 寺井弘高; 清水亮介
Oral presentation, Japanese, 日本物理学会 2019年秋季大会, Domestic conference
12 Sep. 2019 - 光カーゲート法による超高速単一光子検出II
工貴大; 知名史博; 藪野正裕; 三木茂人; 寺井弘高; 清水亮介
Oral presentation, Japanese, 日本物理学会 2019年秋季大会, Domestic conference
12 Sep. 2019 - 地上空間光伝送実験におけるpolar符号の性能評価
藤田紳吾; 伊藤啓太; 岡本英二; 竹中秀樹; 國森裕生; 遠藤寛之; 藤原幹生; 北村光雄; 清水亮介; 佐々木雅英; 豊嶋守生
Oral presentation, Japanese, 2019年電子情報通信学会ソサイエティ大会, Domestic conference
12 Sep. 2019 - 励起子分子から生成された光子対の量子フーリエ変換分光III
関浩弥; 内堀裕太; 江文智; 石原淳; 宮島顕祐; 清水亮介
Poster presentation, Japanese, 日本物理学会 2019年秋季大会, Domestic conference
12 Sep. 2019 - 光カーゲート法による伝令付き単一光子波束の観測
工貴大; 知名史博; 藪野正裕; 三木茂人; 寺井弘高; 清水亮介
Poster presentation, Japanese, 第16回原子・分子・光科学（AMO）討論会, International conference
14 Jun. 2019 - 任意時間波束操作に向けた離散周波数量子もつれ光子のスペクトル制御
田沢久留実; 知名史博; 藪野正裕; 三木茂人; 寺井弘高; 清水亮介
Poster presentation, Japanese, 第16回原子・分子・光科学（AMO）討論会, Domestic conference
14 Jun. 2019 - 量子もつれ光子のフーリエ操作による時間波束制御
坂田美紗樹; 淺村尚人; 知名史博; 藪野正裕; 三木茂人; 寺井弘高; 清水亮介
Poster presentation, Japanese, 第16回原子・分子・光科学（AMO）討論会, Domestic conference
14 Jun. 2019 - 励起子分子を介して生成たれた光子対の差周波型量子フーリエ変換分光
関浩弥; 内堀裕太; 江文智; 石原淳; 宮島顕祐; 清水亮介
Poster presentation, Japanese, 第16回原子・分子・光科学（AMO）討論会, Domestic conference
14 Jun. 2019 - 量子もつれ光子の時間－周波数分布操作
清水亮介
Invited oral presentation, Japanese, フォトニックネットワーク研究会, Invited, Domestic conference
26 Apr. 2019 - 量子もつれ光子に対するフーリエ二重性の研究
清水亮介
Invited oral presentation, Japanese, 光科学技術研究振興財団平成３０年度研究助成金贈呈式, Invited, Domestic conference
07 Mar. 2019 - 励起子分子から生成された光子対の量子フーリエ変換分光II
関浩弥; 佐久間翔平; 内堀裕太; 江文智; 石原淳; 宮島顕祐; 清水亮介
Oral presentation, Japanese, 日本物理学会 第７４回年次大会, Domestic conference
Mar. 2019 - 任意時間波束操作に向けた2光子スペクトルの多モード化II
田沢久留実; 淺村尚人; 藪野正裕; 三木茂人; 寺井弘高; 清水亮介
Oral presentation, Japanese, 日本物理学会 第７４回年次大会, Domestic conference
Mar. 2019 - 2光子時間波束位相変調による量子もつれ光子のスペクトル操作II
八木澤拓実; 淺村尚人; 藪野正裕; 三木茂人; 寺井弘高; 清水亮介
Oral presentation, Japanese, 日本物理学会 第７４回年次大会, Domestic conference
Mar. 2019 - 光カーゲート法による超高速単一光子検出
工貴大; 内藤僚; 藪野正裕; 三木茂人; 寺井弘高; 清水亮介
Oral presentation, Japanese, 日本物理学会 第７４回年次大会, Domestic conference
Mar. 2019 - 大気揺らぎ予測モデルの掲示による適合度低下について
竹中秀樹; 遠藤寛之; 藤原幹生; 北村光雄; 都筑織衞; 清水亮介
Oral presentation, Japanese, 2019年電子情報通信学会総合大会, Domestic conference
Mar. 2019 - 二次元周波数空間中での励起子分子スペクトル計測
佐久間翔平; 江文智; 内堀裕太; 石原淳; 宮島顕祐; 清水亮介
Poster presentation, Japanese, 第29回光物性研究会, Domestic conference
Dec. 2018 - 励起子分子から生成された光子対の差周波型量子干渉
関浩弥; 佐久間翔平; 堀裕太; 江文智; 内石原淳; 宮島顕祐; 清水亮介
Poster presentation, Japanese, 第29回光物性研究会, Domestic conference
Dec. 2018 - Duality between time and Frerquency distributions of biphotons
Ryosuke Shimizu
Public discourse, English, The 3rd China Optics Valley Aerospace Laser & Quantum Technology Forum, Invited, International conference
13 Nov. 2018 - Direct measurement of time-frequency distribution of biphotons
Ryosuke Shimizu
Oral presentation, English, The 5th. MIPT-UEC-LPI International Workshop on Atomic, Molecular and Optical Physics, International conference
02 Oct. 2018 - シングルピクセルの超伝導ナノワイヤ単一光子検出器を用いた時分割多重検出型位置検出および分光検出システムの開発
藪野正裕; 知名史博; 三木茂人; 清水亮介; 寺井弘高
Poster presentation, Japanese, 応用物理学会秋季学術講演会, Domestic conference
19 Sep. 2018 - 励起子分子から生成された光子対の量子フーリエ変換分光
関浩弥; 佐久間翔平; 内堀裕太; 江文智; 石原淳; 宮島顕祐; 清水亮介
Oral presentation, Japanese, 日本物理学会, Domestic conference
10 Sep. 2018 - 励起子分子から生成された光子対の二次元量子分光
佐久間翔平; 内堀裕太; 江文智; 石原淳; 宮島顕祐; 清水亮介
Oral presentation, Japanese, 日本物理学会, Domestic conference
10 Sep. 2018 - 分光計測として量子光学測定
清水亮介
Oral presentation, Japanese, 日本物理学会, Domestic conference
10 Sep. 2018 - 2光子時間位相変調による量子もつれ光子のスペクトル操作
八木澤拓実; 淺村尚人; 藪野正裕; 三木茂人; 寺井弘高; 清水亮介
Oral presentation, Japanese, 日本物理学会, Domestic conference
09 Sep. 2018 - 任意時間波束操作に向けた2光子スペクトルの多モード化
田沢久留実; 淺村尚人; 藪野正裕; 三木茂人; 寺井弘高; 清水亮介
Oral presentation, Japanese, 日本物理学会, Domestic conference
09 Sep. 2018 - ２光子スペクトル位相変調による量子もつれ光子の時間波束操作
淺村尚人; 藪野正裕; 三木茂人; 寺井弘高; 清水亮介
Oral presentation, Japanese, 日本物理学会, Domestic conference
09 Sep. 2018 - Quantum interferometric spectroscopy
Rui-Bo Jin; Ryosuke Shimizu
Oral presentation, English, Pacific Rim Conference on Laser and Electro-Optics (CLEO PacificRim 2018), International conference
03 Aug. 2018 - Time-frequency distributions of a biphoton wave packet
Ryosuke Shimizu
Invited oral presentation, English, Progress in Electromagnetics Research Symposium (PIERS2018), Invited, International conference
03 Aug. 2018 - Temperature dependence of polarization entanglement generated from biexciton.
Shouhei Sakuma; Satoru Efumi; Jun Ishihara; Kensuke Miyajima; Ryosuke Shimizu
Poster presentation, English, The 12th International Conference on Excitonic and Photonic Processes in Condensed Matter and Nano Materials (EXCON2018), International conference
Jul. 2018 - フーリエ操作による量子もつれ光子の時間波束制御
淺村尚人; 清水亮介
Oral presentation, Japanese, 日本物理学会, Domestic conference
22 Mar. 2018 - 励起子分子より生成された光子の量子相関の温度依存性
佐久間翔平; 江文智; 石原淳; 宮島顕祐; 清水亮介
Poster presentation, Japanese, 日本物理学会, Domestic conference
22 Mar. 2018 - Fourier optics for entangled photons
Ryosuke Shimizu
Invited oral presentation, English, Okinawa School in Physics 2017: Coherent Quantum Dynamics (CQD2017), Invited
26 Sep. 2017 - 正の周波数相関を持つ２光子のスペクトル－位相制御
淺村尚人; 清水亮介
Oral presentation, Japanese, 日本物理学会 2017年秋季大会, Domestic conference
21 Sep. 2017 - 周波数上方変換を用いた通信波長帯単一光子の高時間分解検出-ビーム入射角依存性-
井藤魁; 淺村尚人; 清水亮介; 早瀬潤子
Oral presentation, Japanese, 第78回応用物理学会秋季学術講演会, Domestic conference
05 Sep. 2017 - Control of time-frequency quantum correlation of a biphoton wavepacket
Ryosuke Shimizu
Invited oral presentation, Japanese, 分子研セミナー, Invited, Domestic conference
30 Aug. 2017 - Beam angle dependence of time-resolved single-photon detection in communication band by frequency up-conversion
Kai Ito; Ryosuke Shimizu; Junko Ishi-Hayase
Poster presentation, English, The 24th Congress of the International Commission for Optics, International conference
22 Aug. 2017 - 量子もつれ光子の時間－周波数領域における二重性
清水 亮介; 齋藤 拓真
Poster presentation, Japanese, 第14回AMO討論会, Domestic conference
30 Jun. 2017 - 離散周波数量子もつれ光子のスペクトル－位相制御
淺村尚人; 椎名良治; 清水亮介
Poster presentation, Japanese, 第14回AMO討論会, Domestic conference
30 Jun. 2017 - 量子光学測定の分光計測への応用
佐久間翔平; 宇野諒; 橋本優吾; 宮島顕祐; 清水亮介
Poster presentation, Japanese, 第14回AMO討論会, Domestic conference
30 Jun. 2017 - 周波数量子もつれ光子の時間分布計測とフーリエ二重性
清水亮介; 齊藤拓真
Oral presentation, Japanese, レーザー学会 学術講演会 第３７回年次大会, Domestic conference
Jan. 2017 - 分光計測としての量子状態トモグラフィ
宇野諒; 橋本優吾; 宮島顕祐; 清水亮介
Poster presentation, Japanese, 第27回光物性研究会, Domestic conference
Dec. 2016 - 量子もつれ光子のスペクトル－位相制御
椎名良治; 清水亮介
Oral presentation, Japanese, Optics & Photonics Japan 2016, Domestic conference
Nov. 2016 - 量子もつれ光子の時間分布計測とフーリエ二重性
清水亮介; 齊藤拓真
Oral presentation, Japanese, Optics & Photonics Japan 2016, Domestic conference
Nov. 2016 - CuCl単結晶から生成された偏光量子もつれ光子の単一モードファイバを用いた観測
宇野諒; 橋本優吾; 宮島顕祐; 清水亮介
Poster presentation, Japanese, 日本物理学会 2016年秋季大会, Domestic conference
20 Sep. 2016 - SSPDを用いた時間分割多重型単一光子分光検出システムの開発
藪野正裕; 山下太郎; 三木茂人; 清水亮介; 寺井弘高
Oral presentation, Japanese, 第７７回応用物理学会秋季学術講演会, Domestic conference
14 Sep. 2016 - Gamma-Gammaフェージングの影響下における単一光子検出器を用いた通信シミュレーション．
小林優輔; 國森裕生; 遠藤寛之; 藤原幹生; 北村光雄; 伊藤寿之; 佐々木雅英; 清水亮介; 青木隆朗; 行田弘一
Oral presentation, Japanese, 衛星通信研究会（SAT）, Domestic conference
18 Aug. 2016 - 光空間通信における物理レイヤ暗号～実用化への課題と今後の展望～
遠藤寛之; 藤原幹生; 北村光雄; 伊藤寿之; 豊嶋守生; 竹中秀樹; 清水亮介; 青木隆朗; 佐々木雅英
Oral presentation, Japanese, 衛星通信研究会（SAT）, Invited, Domestic conference
18 Aug. 2016 - Secret key agreement demonstration over 7.8 km free-space optical channel
Mikio Fujiwara; Toshiyuki Ito; Mitsuo Kitamura; Hiroyuki Endo; Morio Toyoshima; Hideki Takenaka; Yoshihisa Takayama; Ryosuke Shimizu; Masahiro Takeoka; Ryutaroh Matsumoto; Masahide Sasaki
Poster presentation, English, 13th International Conference on Quantum Communication, Measurement and Computing (QCMC2016), International conference
Jul. 2016 - Detection-dependent six-photon NOON state interference
Rui-Bo Jin; Mikio Fujiwara; Ryosuke Shimizu; Robert Collins; Gerald Buller; Taro Yamashita; Shigehito Miki; Hirotaka Terai; Masahiro Takeoka; Masahide Sasaki
Poster presentation, English, 13th International Conference on Quantum Communication, Measurement and Computing (QCMC2016), International conference
Jul. 2016 - 光子の周波数相関制御と時間分布計測
清水亮介
Public discourse, Japanese, 第124回KARCコロキウム, Invited, Domestic conference
08 Jun. 2016 - 周波数量子もつれ光子の二光子時間分布計測
清水亮介; 齊藤拓真
Oral presentation, Japanese, 日本物理学会 第71回年次大会, Domestic conference
21 Mar. 2016 - 周波数量子もつれ光子の二光子スペクトル-位相制御技術の開発
椎名良治; 清水亮介
Oral presentation, Japanese, 日本物理学会 第71回年次大会, Domestic conference
21 Mar. 2016 - CuCl単結晶から生成された光子対の単一モードファイバへの結合
宇野諒; 杉村優; 菅原雅弘; 橋本優吾; 宮島顕祐; 清水亮介
Oral presentation, Japanese, 日本物理学会 第71回年次大会, Domestic conference
21 Mar. 2016 - 光空間通信の物理レイヤセキュリティ技術
遠藤寛之; 藤原幹生; 北村光雄; 伊藤寿之; 豊嶋守生; 竹中秀樹; 清水亮介; 青木隆朗; 佐々木雅英
Oral presentation, Japanese, 衛星通信研究会（SAT）, Domestic conference
16 Feb. 2016 - 量子もつれ光子のフーリエ光学
清水亮介
Public discourse, Japanese, 第２８回先端光量子科学アライアンスセミナー, Invited, Domestic conference
18 Nov. 2015 - 量子もつれ光子波束の時間領域計測
清水亮介
Invited oral presentation, Japanese, 「新しい光科学の創成とナノ情報デバイスへの展開III」研究会, Domestic conference
Oct. 2015 - 極微弱光領域のフォトニクス-量子もつれ光子のフーリエ二重性-
清水亮介
Public discourse, Japanese, 光応用工学特別研究会, Invited, Domestic conference
09 Jun. 2015 - 低複屈折分極反転デバイスによる量子もつれ光子生成
清水亮介
Invited oral presentation, Japanese, 第62回応用物理学会春季学術講演会, Invited, Domestic conference
12 Mar. 2015 - 周波数量子もつれ光子のフーリエ二重性
齊藤拓真; 清水亮介
Oral presentation, Japanese, 第25回光物性研究会, Domestic conference
Dec. 2014 - アップコンバージョン法を用いた超高速単一光子検出システムの開発
齊藤拓真; 清水亮介
Oral presentation, Japanese, 日本物理学会2014秋季大会, Domestic conference
Sep. 2014 - Recent progress of photon pair generation and detection at telecom wavelength
Ryosuke Shimizu
Oral presentation, English, 第3回量子ICTフォーラム, Invited, Domestic conference
Jun. 2014 - Broadband polarization entangled photon pair generation in type-II parametric down-conversion
Nandan Singh; Ryosuke Shimizu
Oral presentation, English, 第６１回応用物理学会春期学術講演会, Domestic conference
Mar. 2014 - Pulsed Sagnac polarization-entangled photon source with a PPKTP crystal at telecom wavelength
Rui-Bo Jin; Ryosuke Shimizu; Kentaro Wakui; Mikio Fujiwara; Taro Yamashita; Shigehito Miki; Hirotaka Terai; Zhen Wang; Madahide Sasaki
Oral presentation, English, 第６１回応用物理学会春期学術講演会, Domestic conference
Mar. 2014 - アップコンバージョン法による単一光子時間分解計測装置の開発
齊藤拓真; 清水亮介
Poster presentation, Japanese, 第24回光物性研究会, Domestic conference
Dec. 2013 - 光の粒で情報を伝える：光子を使った量子情報通信技術
清水亮介
Invited oral presentation, Japanese, Symposium on New Frontiers of Quantum Photonic Network, International conference
Nov. 2013 - Pulsed Sagnac polarization-entangled photon source with a PPKTP crystal at telecom wavelength
Rui-Bo Jin; Ryosuke Shimizu; Kentaro Wakui; Mikio Fujiwara; Taro Yamashita; Shigehito Miki; Hirotaka Terai; Zhen Wang; Masahide Sasaki
Oral presentation, English, 第29回量子情報技術研究会 (QIT29), Domestic conference
Nov. 2013 - Nonclassical interference between independent intrinsically pure single photons at telecom wavelength
R.-B. Jin; K. Wakui; R. Shimizu; H. Benichi; S. Miki; T. Yamashita; H. Terai; Z. Wang; M. Fujiwara; M. Sasaki
Oral presentation, English, Single Photon Workshop 2013, International conference
Oct. 2013 - 通信波長帯における主は数無相関光子対の直接生成と多光子干渉実験
清水亮介
Oral presentation, Japanese, 第７４回応用物理学会秋季学術講演会, Domestic conference
Sep. 2013 - 通信波長帯における独立した光子間での二光子干渉実験
清水亮介; 金鋭博; 和久井健太郎; Hugo Benichi; 三木茂人; 山下太郎; 寺井弘高; 王鎮; 藤原幹生; 佐々木雅英
Oral presentation, Japanese, 日本物理学会2013年秋季大会, Domestic conference
Sep. 2013 - Nonclasscial interference between independent photon sources at telecom wavelength with widely tunable, spectrally highly pure single photon sources
R.-B. Jin; K. Wakui; R. Shimizu; H. Benichi; S. Miki; T. Yamashita; H. Terai; Z. Wang; M. Fujiwara; M. Sasaki
Poster presentation, English, The international workshop on new science and technologies using entangled photons, International conference
Jul. 2013 - Nonclasscial Interference between Independent Photon Sources at Telecom Wavelength with Superconducting Nanowire Single-Photon Detectors
R.-B. Jin; K. Wakui; R. Shimizu; H. Benichi; S. Miki; T. Yamashita; H. Terai; Z. Wang; M. Fujiwara; M. Sasaki
Oral presentation, English, The 12th Asia Pacific Physics Conference (APPC12), International conference
Jul. 2013 - Widely-tunable, spectrally pure, high effcient photon pairs generation at telecom wavelength
R.-B. Jin; R. Shimizu; K. Wakui; H. Benichi; M. Sasaki
Poster presentation, English, CLEO/Europe-EQEC 2013, International conference
May 2013 - Control of frequency correlations between photons
R. Shimizu
Public discourse, English, Qulink Seminar, Invited, International conference
Apr. 2013 - 量子もつれ光子の光科学
清水亮介
Public discourse, Japanese, 第１６回先端光量子科学アライアンスセミナー, Invited, Domestic conference
Nov. 2012 - 周波数無相関2光子状態の直接生成と4光子量子干渉
清水亮介
Nominated symposium, Japanese, 分子研研究会「新しい光の創成と物質科学－精密計測と操作への展開」, Invited, Domestic conference
Nov. 2012 - 光子数分解分光計測から見る量子もつれ光子
清水亮介
Invited oral presentation, Japanese, 量子エレクトロニクス研究会, Invited, Domestic conference
Dec. 2011 - 光計測技術への応用に向けた周波数量子もつれ状態の制御
清水亮介
Invited oral presentation, Japanese, 第58回応用物理学関係連合講演会, Invited, Domestic conference
Aug. 2011 - 多光子波束による物質の非線形光学応答
清水亮介
Invited oral presentation, Japanese, 第58回応用物理学関係連合講演会, Invited, Domestic conference
Mar. 2011
Courses
- 物理学概論第一
Apr. 2024 - Present
電気通信大学 - 量子情報光学特論
Present
The University of Electro-Communications - 物理工学実験第二
Present
The University of Electro-Communications - 量子エレクトロニクス
Present
電気通信大学 - 学域特別講義A（3大学協働基礎ゼミ’２４）
Jul. 2024 - Sep. 2024 - 物理工学特論
The University of Electro-Communications - 物理工学特論
電気通信大学 - 特別講義第四
山梨大学 - 特別講義第四
山梨大学 - Graduate Technical English
The University of Electro-Communications - 大学院技術英語
電気通信大学 - Physics Ⅰ
The University of Electro-Communications - 量子情報光学特論
電気通信大学 - 量子情報光学特論
The University of Electro-Communications - 応用物理工学実験第二
The University of Electro-Communications - 量子エレクトロニクス
The University of Electro-Communications - 量子エレクトロニクス
電気通信大学 - 応用物理工学実験第二
The University of Electro-Communications - 応用物理工学実験第二
電気通信大学 - 量子エレクトロニクス
The University of Electro-Communications
Affiliated academic society
Research Themes
- 高次元フーリエ操作による時間ー周波数量子もつれ光変調技術の開発とその応用
清水 亮介
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(B), 24K01379
01 Apr. 2024 - 31 Mar. 2028 - 複雑分子系としての光合成機能の解明に向けた多次元量子もつれ分光技術の開発
文部科学省, 光・量子飛躍フラッグシッププログラム(Q-LEAP), 電気通信大学, Principal investigator, JPMXS0118069242
Nov. 2018 - Mar. 2028 - Understanding Losses in Organic Semiconductors with Quantum Optical Single Molecule Spectroscopy
日本学術振興会, 国際共同研究事業 英国との国際共同研究プログラム(JRP-LEAD with UKRI), 電気通信大学, Principal investigator, 20241704
Feb. 2025 - Jan. 2028 - Development of Organic Semiconductor Quantum Light Sources
清水 亮介; FAIRBAIRN NICOLA
Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, The University of Electro-Communications, Grant-in-Aid for JSPS Fellows, Principal investigator, 25KF0034
Apr. 2025 - Mar. 2027 - 多光子波束による物質の非線形光学応答
清水 亮介
科学技術振興機構, 戦略的な研究開発の推進 戦略的創造研究推進事業 さきがけ, 科学技術振興機構, Principal investigator, 光の量子性が顕著になる極微弱光領域における光と物質の相互作用では多光子波束の量子的な内部自由度が重要な役割を果たします。本研究では時間ー周波数領域における多光子波束の内部自由度を制御する手法の開拓を行い、その非線形光学応答を実験的に調べます。これにより、量子レベルの光と物質との非線形光学応答では相互作用を強く起こしたい場合と、時間応答を調べたい場合とで最適な光の状態が異なることを明らかにします。
2007 - 2010
Industrial Property Rights
- GENERATOR OF POLARIZATION ENTANGLED PHOTON PAIRS AND METHOD OF GENERATING THE SAME
Patent right, Ryosuke Shimizu, Keiichi Edamatsu, PCT/JP2010/059461, EP 2,439,585, Date issued: 30 Apr. 2014 - GENERATOR OF POLARIZATION ENTANGLED PHOTON PAIRS AND METHOD OF GENERATING THE SAME
Patent right, Ryosuke Shimizu, Keiichi Edamatsu, PCT/JP2010/059461, US 8,488,231, Date issued: 16 Jul. 2013 - 偏光量子もつれ光子対の生成装置及びその生成方法
Patent right, 清水亮介, 枝松圭一, -, 特許第5099393号, Date issued: 05 Oct. 2012 - NON-DEGENERATE POLARIZATION-ENTANGLED PHOTON PAIR GENERATION DEVICE AND NON-DEGENERATE POLARIZATION-ENTANGLED PHOTON PAIR GENERATION METHOD
Patent right, Ryosuke Shimizu, Keiichi Edamatsu, Shigehiro Nagano, PCT/JP2008/072441, US 8,173,982, Date issued: 08 May 2012 - 量子もつれ光子対生成装置，及び，量子もつれ光子対生成方法
Patent right, -, 清水亮介、枝松圭一, 特許第4781426号, Date issued: 15 Jul. 2011 - 光学非線形性評価装置及び光スイッチング素子
Patent right, 清水亮介, 枝松圭一, 松田信幸, -, 特許第4627549号, Date issued: 19 Nov. 2010 - NON-DEGENERATE POLARIZATION-ENTANGLED PHOTON PAIR GENERATION DEVICE AND NON-DEGENERATE POLARIZATION-ENTANGLED PHOTON PAIR GENERATION METHOD
Patent right, Ryosuke Shimizu, Shigehiro Nagano, Keiichi Edamatsu, PCT/JP2008/072441, EP 2,233,971, Date issued: 29 Sep. 2010 - OPTICAL NONLINEAR EVALUATION DEVICE AND OPTICAL SWITCHING ELEMENT
Patent right, Ryosuke Shimizu, Keiichi Edamatsu, Nobuyuki Matsuda, -, US 7,652,770, Date issued: 26 Jan. 2010 - QUANTUM ENTANGLEMENT PHOTON-PAIR PRODUCING DEVICE AND QUANTUM ENTANGLEMENT PHOTON PAIR PRODUCING METHOD
Patent right, Ryosuke Shimizu, Keiichi Edamatsu, -, US 7,570,419, Date issued: 04 Aug. 2009
