Prof. Takashi Kita Profile

Prof. Takashi Kita

Professor at Kobe Univ

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Author

Publications (12)

Proceedings Article | 1 April 2021 Presentation + Paper

Yb-doped yttrium aluminum perovskite for radiation balanced laser application

Yuta Nakayama, Yukihiro Harada, Takashi KIta

Proceedings Volume 11702, 117020K (2021) https://doi.org/10.1117/12.2577115

KEYWORDS: Yttrium, Perovskite, Aluminum, Laser applications, YAG lasers, Phonons, Luminescence, Ceramics, Absorbance, Solid state physics

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Proceedings Article | 5 March 2021 Presentation

Laser cooling efficiency of Yb-doped yttrium aluminum oxide crystals

Takashi Kita, Yuta Nakayama

Proceedings Volume 11702, 1170204 (2021) https://doi.org/10.1117/12.2577443

KEYWORDS: Laser crystals, Crystals, Yttrium, Corundum, Luminescence, Thin films, Solid state lasers, Oxides, Energy transfer, Crystallography

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Proceedings Article | 24 February 2020 Paper

Enhancement of laser cooling efficiency in rare-earth-doped oxide at elevated high temperature

Yuta Nakayama, Yukihiro Harada, Takashi Kita

Proceedings Volume 11298, 112980B (2020) https://doi.org/10.1117/12.2545460

KEYWORDS: Luminescence, Ions, Phonons, Ceramics, Erbium, Ytterbium, Absorption, Raman spectroscopy

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Proceedings Article | 16 February 2018 Paper

Two-step photon up-conversion solar cell: propose and demonstration

S. Asahi, T. Kita

Proceedings Volume 10527, 105270G (2018) https://doi.org/10.1117/12.2292681

KEYWORDS: Electrons, External quantum efficiency, Solar cells, Sun, Gallium, Gallium arsenide, Aluminum, Semiconductors, Indium arsenide, Absorption

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Proceedings Article | 14 March 2016 Paper

Effective drift mobility approximation in multiple quantum-well solar cell

Kasidit Toprasertpong, Tomoyuki Inoue, Kentaroh Watanabe, Takashi Kita, Masakazu Sugiyama, Yoshiaki Nakano

Proceedings Volume 9743, 974315 (2016) https://doi.org/10.1117/12.2209611

KEYWORDS: Carrier dynamics, Solar cells, Quantum wells, Device simulation, Nanostructures, Performance modeling, Structural design, Absorption, Quantum dots, Gallium arsenide

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Proceedings Article | 16 March 2015 Paper

Suppression of thermal carrier escape and enhanced two-step photon absorption in quantum-dot intermediate-band solar cells with a high-potential barrier

S. Asahi, H. Teranishi, N. Kasamatsu, T. Kada, Toshiyuki Kaizu, T. Kita

Proceedings Volume 9358, 93580X (2015) https://doi.org/10.1117/12.2081302

KEYWORDS: Absorption, Quantum wells, Gallium arsenide, Solar cells, Electrons, Indium arsenide, Infrared lasers, Light emitting diodes, Signal detection, Carrier dynamics

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Proceedings Article | 25 March 2013 Paper

Intraband carrier dynamics in InAs/GaAs quantum dots studied by two-color excitation spectroscopy

Yukihiro Harada, Tsuyoshi Maeda, Takashi Kita

Proceedings Volume 8620, 862008 (2013) https://doi.org/10.1117/12.2003423

KEYWORDS: Absorption, Electrons, Spectroscopy, Quantum dots, Pulsed laser operation, Gallium arsenide, Carrier dynamics, Indium arsenide, Infrared lasers, Luminescence

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Proceedings Article | 26 February 2010 Paper

Vertically stacked InAs quantum dots for polarization-independent semiconductor optical amplifiers

Tomoya Inoue, Masaki Asada, Osamu Kojima, Takashi Kita, Osamu Wada

Proceedings Volume 7597, 75971J (2010) https://doi.org/10.1117/12.847644

KEYWORDS: Indium arsenide, Gallium arsenide, Polarization, Quantum dots, Transmission electron microscopy, Semiconductor optical amplifiers, Polarization control, Optical amplifiers, Diodes, Luminescence

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Proceedings Article | 16 February 2010 Paper

Self-assembled InAs quantum dots within a vertical cavity structure for all-optical switching devices

C. Y. Jin, O. Kojima, T. Inoue, T. Kita, O. Wada, M. Hopkinson, K. Akahane

Proceedings Volume 7610, 76100Q (2010) https://doi.org/10.1117/12.846621

KEYWORDS: Switching, Reflectivity, Mirrors, Switches, Absorption, Nonlinear optics, Solids, Quantum dots, Picosecond phenomena, Indium arsenide

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Proceedings Article | 29 November 2000 Paper

Optical characterization of synthetic diamond films

Takashi Kita, Seiji Nagahara, Taneo Nishino

Proceedings Volume 4086, (2000) https://doi.org/10.1117/12.408316

KEYWORDS: Diamond, Crystals, Modulation, Excitons, Reflectivity, Scanning electron microscopy, Edge emitting semiconductor lasers, Phonons, Absorption, Spectroscopy

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Proceedings Article | 19 October 2000 Paper

Diffraction property of ultrashort laser pulses in photorefractive multiple quantum wells

Kiyoshi Nakagawa, Takumi Minemoto, Takashi Kita, Kenitchi Yamashita, Taneo Nishino, Mihaela Dinu, David Nolte, Michael Melloch

Proceedings Volume 4110, (2000) https://doi.org/10.1117/12.404783

KEYWORDS: Diffraction, Quantum wells, Ultrafast phenomena, Absorption, Gallium arsenide, Diffraction gratings, Electro optics, Refractive index, Diffractive optical elements, Femtosecond phenomena

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Proceedings Article | 20 February 1998 Paper

Quantum approach to vapor phase growth mechanism of diamond film

Guang-Pu Wei, Takashi Kita, H. Hakayama, Taneo Nishino

Proceedings Volume 3175, (1998) https://doi.org/10.1117/12.300730

KEYWORDS: Diamond, Thermodynamics, Quantum mechanics, Surface plasmons

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Showing 5 of 12 publications

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