Prof. Kazuhiko Hirakawa Profile

Prof. Kazuhiko Hirakawa

at Univ of Tokyo

SPIE Involvement:

Author

Publications (5)

Proceedings Article | 11 March 2020 Paper

Improvement of acquisition time using high speed MEMS bolometer in active imaging

Isao Morohashi, Ya Zhang, Boqi Qiu, Norihiko Sekine, Kazuhiro Hirakawa, Iwao Hosako

Proceedings Volume 11331, 1133104 (2020) https://doi.org/10.1117/12.2553016

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Proceedings Article | 13 April 2005 Paper

Ultrafast carrier dynamics in semiconductor superlattices: terahertz gain and dephasing mechanism

Norihiko Sekine, Yozo Shimada, Kazuhiko Hirakawa

Proceedings Volume 5725, (2005) https://doi.org/10.1117/12.607517

KEYWORDS: Terahertz radiation, Electrons, Scattering, Superlattices, Stereolithography, Chromium, Oscillators, Interfaces, Laser sintering, Gallium

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Proceedings Article | 7 April 2005 Paper

Photoconductivity in lateral conduction self-assembled Ge/Si quantum dot infrared photodetectors

S.-W. Lee, C. Park, T. Kang, H. Cho, K. Hirakawa

Proceedings Volume 5726, (2005) https://doi.org/10.1117/12.588445

KEYWORDS: Germanium, Silicon, Quantum wells, Photodetectors, Quantum well infrared photodetectors, Infrared radiation, Quantum dots, Infrared photography, Mid-IR, Near infrared

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Proceedings Article | 30 May 2003 Paper

Dynamical carrier transport and terahertz gain in semiconductor superlattices

Kazuhiko Hirakawa, Yozo Shimada, M. Odnoblioudov, K. Chao

Proceedings Volume 4992, (2003) https://doi.org/10.1117/12.475701

KEYWORDS: Terahertz radiation, Superlattices, Stereolithography, Absorption, Semiconductors, Electron transport, Femtosecond phenomena, Laser sintering, Emission spectroscopy, Spectroscopy

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Proceedings Article | 1 March 1991 Paper

Transient of electrostatic potential at GaAs/AlAs heterointerfaces characterized by x-ray photoemission spectroscopy

Kazuhiko Hirakawa, Y. Hashimoto, Toshiaki Ikoma

Proceedings Volume 1361, (1991) https://doi.org/10.1117/12.24361

KEYWORDS: X-rays, Photoemission spectroscopy, Interfaces, Gallium arsenide, Heterojunctions, Electrons, Crystals, Gallium, Optoelectronic devices, Molecular beams

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Conference Committee Involvement (10)

Optical Sensing, Imaging, and Photon Counting: From X-Rays to THz 2019

14 August 2019 | San Diego, California, United States

Optical Sensing, Imaging, and Photon Counting: From X-Rays to THz

22 August 2018 | San Diego, California, United States

Ultrafast Phenomena and Nanophotonics XXII

29 January 2018 | San Francisco, California, United States

Ultrafast Phenomena and Nanophotonics XXI

30 January 2017 | San Francisco, California, United States

Ultrafast Phenomena and Nanophotonics XX

15 February 2016 | San Francisco, California, United States

Showing 5 of 10 Conference Committees

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