Mr. Shohei Hayashi Profile

Shohei Hayashi

at Hamamatsu Photonics KK

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Author

Publications (3)

Proceedings Article | 9 March 2024 Presentation

An external cavity nonlinear quantum cascade laser with high mid-infrared to terahertz conversion efficiency in the frequency of 1.2-4.5 THz tuning range

Shohei Hayashi, Atsushi Nakanishi, Tatsuo Dougakiuchi, Akio Ito, Masahiro Hitaka, Kazuue Fujita

Proceedings Volume PC12895, PC128950F (2024) https://doi.org/10.1117/12.3001178

KEYWORDS: Terahertz radiation, Quantum cascade lasers, Mid-IR, Quantum frequencies, Laser frequency, Quantum efficiency, Quantum conversion, External quantum efficiency, Terahertz technology, Difference frequency generation

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Proceedings Article | 15 March 2023 Presentation + Paper

Lens-coupled sub-THz and THz quantum cascade laser sources based on intra-cavity frequency mixing

Shohei Hayashi, Akio Ito, Tatsuo Dougakiuchi, Masahiro Hitaka, Atsushi Nakanishi, Kazuue Fujita

Proceedings Volume 12430, 1243007 (2023) https://doi.org/10.1117/12.2648566

KEYWORDS: Terahertz radiation, Quantum cascade lasers, Silicon

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Proceedings Article | 18 November 2019 Paper

Room-temperature monolithic quantum-cascade laser sources operating from 1.1 to 1.5 THz

Kazuue Fujita, Shohei Hayashi, Masahiro Hitaka, Akio Ito, Tatsuo Dougakiuchi, Wei Dong, Hiroyasu Fujiwara

Proceedings Volume 11196, 111960P (2019) https://doi.org/10.1117/12.2536271

KEYWORDS: Terahertz radiation, Quantum cascade lasers, Difference frequency generation, Semiconductors, Light sources, Phase matching, Imaging spectroscopy, Spectroscopes, Light emitting diodes, Nonlinear optics

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