Ishizaki Kenji

Affiliation and department：

Research field (1)： Optical engineering and photonics

Research theme for competitive and other funds (3)：

2017 - 2019 Investigation on Enhancement of Absorption and Improvement of Efficiency of Very-Thin Crystalline Silicon Solar Cells with Thickness of 10-20 µm
2014 - 2017 Investigation toward realizing high-Q nano-cavities in 3D photonic crystals
2012 - 2014 Control of three-dimensional light guiding in three-dimensional photonic crystals

Papers (94)：

Takuya Inoue, Kentaro Maeda, Masahiro Yoshida, John Gelleta, Shumpei Katsuno, Kenji Ishizaki, Menaka De Zoysa, Susumu Noda. Influence of Band-Edge Frequency Non-Uniformity in Ultra-Large-Area Photonic-Crystal Surface-Emitting Lasers. IEEE Journal of Selected Topics in Quantum Electronics. 2025. 31. 2: Pwr. and Effic. Scaling in. 1-8
Yuhki Itoh, Takeshi Aoki, Kosuke Fujii, Hiroyuki Yoshinaga, Naoki Fujiwara, Makoto Ogasawara, Yusuke Sawada, Rei Tanaka, Kenichi Machinaga, Hideki Yagi, et al. Power Scalability of 1.55-μm-Wavelength InP-Based Double-Lattice Photonic-Crystal Surface-Emitting Lasers With Stable Continuous-Wave Single-Mode Lasing. IEEE Journal of Selected Topics in Quantum Electronics. 2025. 31. 2: Pwr. and Effic. Scaling in. 1-8
Ryohei Morita, Shota Ishimura, Takuya Inoue, Kosuke Nishimura, Hidenori Takahashi, Takehiro Tsuritani, Menaka De Zoysa, Kenji Ishizaki, Masatoshi Suzuki, Susumu Noda. High-speed high-power free-space optical communication via directly modulated watt-class photonic-crystal surface-emitting lasers. Optica. 2024. 11. 7. 971-979
Takeshi Aoki, Yuhki Itoh, Kosuke Fujii, Hiroyuki Yoshinaga, Naoki Fujiwara, Makoto Ogasawara, Yusuke Sawada, Rei Tanaka, Hideki Yagi, Masaki Yanagisawa, et al. High-power, stable single-mode CW operation of 1550 nm wavelength InP-based photonic-crystal surface-emitting lasers. Applied Physics Express. 2024. 17. 4. 042004-042004
Yuhki Itoh, Takeshi Aoki, Kosuke Fujii, Hiroyuki Yoshinaga, Naoki Fujiwara, Kenshi Takada, Makoto Ogasawara, Yusuke Sawada, Hideki Yagi, Masaki Yanagisawa, et al. High-power and high-efficiency operation of 1.3 μm-wavelength InP-based photonic-crystal surface-emitting lasers with metal reflector. Optics Express. 2024. 32. 7. 12520-12520

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MISC (134)：

和泉孝紀, DE ZOYSA Menaka, 行舎直起, 小林宇翔, 井上卓也, 勝野峻平, 吉田昌宏, 石崎賢司, 初田蘭子, 浅野卓, et al. Real-time control of lasing mode state in multiple-electrode PCSEL under CW condition based on CMA-ES and deep learning. 応用物理学会秋季学術講演会講演予稿集(CD-ROM). 2023. 84th
野田進, 井上卓也, 森田遼平, デゾイサメーナカ, 石崎賢司, 十川博行, 江本渓, 小泉朋朗. フォトニック結晶レーザーの短パルス化・短波長化. レーザ加工学会誌. 2023. 30. 1
森田遼平, 井上卓也, 仲野秀栄, DE ZOYSA Menaka, 石崎賢司, 野田進. Extension of direct modulation bandwidth of photonic-crystal lasers based on photon-photon resonance. 応用物理学会春季学術講演会講演予稿集(CD-ROM). 2023. 70th
井上卓也, 森田遼平, DE ZOYSA Menaka, 石崎賢司, 石村昇太, 西村公佐, 高橋英憲, 釣谷剛宏, 鈴木正敏, 鈴木正敏, et al. Proposal of phase modulation method for photonic-crystal lasers. 応用物理学会春季学術講演会講演予稿集(CD-ROM). 2023. 70th
井上卓也, 森田遼平, 吉田昌宏, DE ZOYSA Menaka, 石崎賢司, 野田進. Short-pulse high-peak-power pulsation based on self-evolving photonic crystals. 日本物理学会講演概要集(CD-ROM). 2023. 78. 2

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Lectures and oral presentations (143)：

変調フォトニック結晶レーザーにおける変調方式の検討(?)
(2019年春季第66回応用物理学会春季学術講演会、東京工業大学 2019)
変調フォトニック結晶レーザーの2次元マトリックスアレイ化
(2019年春季第66回応用物理学会春季学術講演会、東京工業大学 2019)
変調フォトニック結晶レーザーの発振安定化のための格子点および電極形状
(2019年春季第66回応用物理学会春季学術講演会、東京工業大学 2019)
埋め込み再成長法による変調フォトニック結晶レーザーの発振特性評価
(2019年春季第66回応用物理学会春季学術講演会、東京工業大学 2019)
二重格子フォトニック結晶レーザーの発振特性に与える格子点構造の影響
(2019年春季第66回応用物理学会春季学術講演会、東京工業大学 2019)

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