2009 · Masaki Yanagisawa, Yukihiro Tsuji, et al. · Journal of Vacuum Science & Technology B Microelectronics and Nanometer Structures Processing Measurement and Phenomena · 7

Study of reactive ion etching for reverse tone nanoimprint process

2009 · Y Tsuji, M Yanagisawa, et al. · Journal of Physics Conference Series · 6

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Narrow-linewidth 1.55-µm-wavelength InP-based photonic-crystal surface-emitting lasers with near-diffraction-limited beam quality

2025 · Takeshi Aoki, Yuhki Itoh, et al. · Optics Express · 5

Single-stripe tunable laser with chirped sampled gratings fabricated by nanoimprint lithography

2014 · Hiroyuki Yoshinaga, Masaki Yanagisawa, et al. · Japanese Journal of Applied Physics · 4

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Wafer-level fabrication of distributed feedback laser diodes by utilizing UV nanoimprint lithography

2011 · Masaki Yanagisawa, Yukihiro Tsuji, et al. · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 4

Evaluation of nanoimprint lithography as a fabrication method of distributed feedback laser diodes

2009 · M Yanagisawa, Y Tsuji, et al. · Journal of Physics Conference Series · 4

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High-power high-beam-quality 1550-nm-wavelength InP-based photonic-crystal surface-emitting laser

2025 · Takeshi Aoki, Yuhki Itoh, et al. · Novel In-Plane Semiconductor Lasers · 3

Mid-infrared gas sensing using uncooled quantum cascade laser with low power consumption

2019 · Makoto Murata, Hiroyuki Yoshinaga, et al. · Quantum Sensing and Nano Electronics and Photonics · 3

Low power-consumption quantum cascade lasers

2015 · Tsukuru Katsuyama, Jun-ichi Hashimoto, et al. · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 3

Directly Modulated C-band High-Power Photonic-Crystal Surface-Emitting Lasers for Free-Space Optical Communications

2026 · Takeshi Aoki, Shota Ishimura, et al. · Journal of Lightwave Technology · 2

Directly Modulated $1.55 \ \mu\text{m}$-Wavelength Photonic-Crystal Surface-Emitting Lasers for Free-Space Optical Communication

2025 · Takeshi Aoki, Shota Ishimura, et al. · European Conference on Optical Communication · 2

High-Temperature Operation of a Quantum Cascade Laser With Definite Parity of the Wave Functions

2021 · Takashi Kato, Hiroki Mori, et al. · IEEE Photonics Technology Letters · 2

High-Temperature (200 °C) Operation of 7.4 μm Distributed Feedback (DFB) Quantum Cascade Laser

2018 · Hiroyuki Yoshinaga, Takashi Kato, et al. · IEEE International Semiconductor Laser Conference (ISLC) · 2

Compact and low power-consumption MIR DFB-QCL with To-CAN Package for portable sensor

2018 · Takashi Kato, Jun-ichi Hashimoto, et al. · Quantum Sensing and Nano Electronics and Photonics · 2

Mid-IR vertical transition DFB quantum cascade laser

2012 · Jun-ichi Hashimoto, Yukihiro Tsuji, et al. · IEICE Technical Report; IEICE Tech. Rep. · 2

Coherent Free-Space Optical Communication at the C-Band Using InP-Based Photonic-Crystal Surface-emitting Laser

2025 · Shota Ishimura, Takeshi Aoki, et al. · European Conference on Optical Communication · 1

InP-Based Photonic Crystal Surface Emitting Lasers for Optical Communication and LiDAR Applications

2025 · Y. Itoh, T. Aoki, et al. · Optical Fiber Communication Conference · 1

High-wall-plug-efficinecy InP-based photonic-crystal surfce-emitting lasers with reflective metal mirror

2023 · Y. Itoh, T. Aoki, et al. · IEEE Photonics Conference · 1

Works count: 49

Citation count: 179

H-index: 7

I10-index: 5