小川和久 (Kazuhisa Ogawa) - マイポータル

基本情報

所属: 大阪大学量子情報・量子生命研究センター講師

学位: 博士(工学)(京都大学)

J-GLOBAL ID: 201501002119233436
researchmap会員ID: B000249224

研究キーワード

研究分野

経歴

2021年4月 - 現在

大阪大学量子情報・量子生命研究センター特任講師
2015年10月 - 2021年3月

北海道大学情報科学研究科助教

学歴

論文

Complex counterpart of variance in quantum measurements for pre-and postselected systems

Kazuhisa Ogawa, Natsuki Abe, Hirokazu Kobayashi, Akihisa Tomita

Physical Review Research 3 033077 2021年7月査読有り筆頭著者責任著者
Direct measurement of ultrafast temporal wavefunctions

Kazuhisa Ogawa, Takumi Okazaki, Hirokazu Kobayashi, Toshihiro Nakanishi, Akihisa Tomita

Optics Express 29(13) 19403-19403 2021年6月21日査読有り
Spatial mode exchange technique using volume holograms with a random optical diffuser for reduction of crosstalk

Shuanglu Zhang, Atsushi Okamoto, Taijun Shiba, Hotaka Hayashi, Kazuhisa Ogawa, Akihisa Tomita, Taketoshi Takahata, Satoshi Shinada, Yuta Goto, Naoya Wada

OPTICAL REVIEW 28(2) 181-189 2021年4月査読有り
State preparation robust to modulation signal degradation by use of a dual parallel modulator for high-speed BB84 quantum key distribution systems

Weiyang Zhang, Yu Kadosawa, Akihisa Tomita, Kazuhisa Ogawa, Atsushi Okamoto

Optics Express 28(9) 13965-13965 2020年4月27日査読有り
Operational formulation of weak values without probe systems

Kazuhisa Ogawa, Hirokazu Kobayashi, Akihisa Tomita

Physical Review A 101(4) 042117 2020年4月17日査読有り筆頭著者責任著者
Mode-selective switch for ROADM using volume holograms and spatial light modulator

Hotaka Hayashi, Atsushi Okamoto, Tomohiro Maeda, Taijun Shiba, Kazuhisa Ogawa, Akihisa Tomita, Taketoshi Takahata, Satoshi Shinada, Yuta Goto, Naoya Wada

Next-Generation Optical Communication: Components, Sub-Systems, and Systems IX 2020年1月31日
Spatial mode exchange technique using volume holograms with a random optical diffuser to reduce modal cross-talks

Zhang Shuanglu, Atsushi Okamoto, Taijun Shiba, Hotaka Hayashi, Kazuhisa Ogawa, Akihisa Tomita, Taketoshi Takahata, Satoshi Shinada, Yuta Goto, Naoya Wada

Next-Generation Optical Communication: Components, Sub-Systems, and Systems IX 2020年1月31日
Wavefront superposition method for accurate and efficient mode conversion

Tomohiro Maeda, Atsushi Okamoto, Kazuhisa Ogawa, Akihisa Tomita

Applied Optics 58(25) 6899-6905 2019年8月査読有り
Highly Accurate Mode Conversion Using Iterative Spatial Cross Modulation.

Maeda, T, Okamoto, A, Ogawa, K, Tomita, A, Wakayama, Y, Tsuritani, T

2019 24th OptoElectronics and Communications Conference (OECC) and 2019 International Conference on Photonics in Switching and Computing (PSC) 1-3 2019年7月査読有り
A framework for measuring weak values without weak interactions and its diagrammatic representation

Kazuhisa Ogawa, Osamu Yasuhiko, Hirokazu Kobayashi, Toshihiro Nakanishi, Akihisa Tomita

New Journal of Physics 21(4) 043013 2019年4月査読有り
Mode conversion based on dual-phase modulation utilizing interference of two-phase-modulated beams

Tomohiro Maeda, Atsushi Okamoto, Kazuhisa Ogawa, Akihisa Tomita, Yuta Wakayama, Takehiro Tsuritani

Optical Review 25(6) 734-742 2018年10月査読有り
Experimental implementation of multiplexing/demultiplexing in digital images using virtual phase conjugation for holographic data storage

Yuta Goto, Atsushi Okamoto, Masanori Takabayashi, Kazuhisa Ogawa, Akihisa Tomita

Optical Review 25(5) 549-554 2018年10月査読有り
Classical reconstruction of interference patterns of position-wave-vector–entangled photon pairs by the time-reversal method

Kazuhisa Ogawa, Hirokazu Kobayashi, Akihisa Tomita

Phys. Rev. A 97(2) 023823 2018年2月13日査読有り
Virtual phase conjugation based optical tomography for single-shot three-dimensional imaging

Yuta Goto, Atsushi Okamoto, Atsushi Shibukawa, Kazuhisa Ogawa, Akihisa Tomita

Optics Express 26(4) 3779-3790 2018年2月査読有り
Volume holographic spatial mode demultiplexer with a dual-wavelength method

Shimpei Shimizu, Atsushi Okamoto, Fumiya Mizukawa, Kazuhisa Ogawa, Akihisa Tomita, Taketoshi Takahata, Satoshi Shinada, Naoya Wada

Applied Optics 57(2) 146-153 2018年1月10日査読有り
Fundamental demonstration of mode-group demultiplexing technique based on volume holographic demultiplexer

Shimpei Shimizu, Atsushi Okamoto, Fumiya Mizukawa, Kazuhisa Ogawa, Akihisa Tomita, Taketoshi Takahata, Satoshi Shinada, Naoya Wada

22nd Microoptics Conference, MOC 2017 2017- 260-261 2018年1月2日査読有り
Compensation of optical aberration for improvement of image quality in virtual-phase-conjugation based optical tomography

Yuta Goto, Atsushi Okamoto, Kazuhisa Ogawa, Akihisa Tomita

22nd Microoptics Conference, MOC 2017 2017- 358-359 2018年1月2日査読有り
Selective mode conversion using dual-phase modulation

Tomohiro Maeda, Atsushi Okamoto, Kazuhisa Ogawa, Akihisa Tomita, Yuta Wakayama, Takehiro Tsuritani

22nd Microoptics Conference, MOC 2017 2017- 68-69 2018年1月2日査読有り
Measurement of differential mode delay using reference-free low-coherence digital holography

Shogo Hoshino, Atsushi Okamoto, Yuta Goto, Kazuhisa Ogawa, Akihisa Tomita, Yuta Wakayama, Takehiro Tsuritani

Proceedings of SPIE - The International Society for Optical Engineering 10561 105610D 2018年査読有り
Selective spatial mode attenuator using phase-intensity-phase modulation toward mode-division multiplexing transmission

Zihan Zhou, Atsushi Okamoto, Shimpei Shimizu, Akihisa Tomita, Kazuhisa Ogawa, Yuta Wakayama, Takehiro Tsuritani

Proceedings of SPIE - The International Society for Optical Engineering 10561 105610H 2018年査読有り