Prof. Kazuhiro Ema Profile

Prof. Kazuhiro Ema

at Sophia Univ

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Author

Publications (6)

Proceedings Article | 1 March 2011 Paper

Anderson localization of light in a random configuration of semiconductor nanocolumns

Y. Inose, M. Sakai, K. Ema, A. Kikuchi, K. Kishino, T. Ohtsuki

Proceedings Volume 7946, 794629 (2011) https://doi.org/10.1117/12.876128

KEYWORDS: Finite-difference time-domain method, Polarization, Gallium nitride, Semiconductors, Dielectrics, Diffraction, Diffusion, Photonic crystals, Radio propagation, Dielectric polarization

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Proceedings Article | 21 February 2011 Paper

Photoexcited carrier relaxation dynamics of InN films and nanocolumns

M. Hashimoto, K. Fukunaga, H. Kunugita, J. Kamimura, A. Kikuchi, K. Kishino, K. Ema

Proceedings Volume 7937, 793712 (2011) https://doi.org/10.1117/12.873357

KEYWORDS: Indium nitride, Picosecond phenomena, Phonons, Scattering, Absorption, Temperature metrology, Scanning electron microscopy, Nanostructures, Crystals, Gallium nitride

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Proceedings Article | 10 September 2007 Paper

Strain-compensated quantum dots emitting at 1.5 micron: resonant nonlinear optical properties and exciton dynamics

Junko Ishi-Hayase, Kouichi Akahane, Naokatsu Yamamoto, Mamiko Kujiraoka, Kazuhiro Ema, Masahide Sasaki

Proceedings Volume 6779, 677903 (2007) https://doi.org/10.1117/12.732348

KEYWORDS: Excitons, Polarization, Anisotropy, Spectroscopy, Quantum dots, Indium arsenide, Telecommunications, Picosecond phenomena, Crystals, Four wave mixing

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Proceedings Article | 28 February 2006 Paper

Exciton dephasing in strain-compensated self-assembled InAs quantum dots

Junko Ishi-Hayase, Kouichi Akahane, Naokatsu Yamamoto, Mamiko Kujiraoka, Kazuhiro Ema, Masahide Sasaki

Proceedings Volume 6115, 61151O (2006) https://doi.org/10.1117/12.661300

KEYWORDS: Excitons, Indium arsenide, Quantum dots, Picosecond phenomena, Polarization, Gallium arsenide, Anisotropy, Four wave mixing, Crystals, Neodymium

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Proceedings Article | 15 February 2006 Paper

Ultrafast intersubband relaxation dynamics and coherent nonlinearity in GaN/AlN multiple quantum wells

J. Hamazaki, K. Ikuno, H. Takahashi, H. Kunugita, K. Ema, A. Kikuchi, K. Kishino

Proceedings Volume 6118, 61180C (2006) https://doi.org/10.1117/12.641316

KEYWORDS: Absorption, Ultrafast phenomena, Quantum wells, Electrons, Signal processing, Polarization, Picosecond phenomena, Optical communications, Dispersion, Scattering

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Proceedings Article | 13 April 2005 Paper

Ultrafast intersubband relaxation in GaN/AlN MQWs

Junichi Hamazaki, Keita Ikuno, Hikaru Takahashi, Hideyuki Kunugita, Kazuhiro Ema, Akihiko Kikuchi, Katsumi Kishino

Proceedings Volume 5725, (2005) https://doi.org/10.1117/12.589568

KEYWORDS: Electrons, Ultrafast phenomena, Absorption, Scattering, Picosecond phenomena, Quantum wells, Gallium nitride, Signal processing, Aluminum nitride, Transmittance

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Showing 5 of 6 publications

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