Mr. Ryoto Hasegawa Profile

Ryoto Hasegawa

at Meijo Univ

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Publications (2)

Proceedings Article | 21 March 2023 Presentation

Progress in UV-B laser diodes fabricated on lattice relaxed AlGaN

Motoaki Iwaya, Ryosuke Kondo, Ryota Hasegawa, Ayumu Yabutani, Eri Matsubara, Toma Nishibayashi, Sho Iwayama, Tetsuya Takeuchi, Satoshi Kamiyama, Hideto Miyake

Proceedings Volume PC12421, (2023) https://doi.org/10.1117/12.2646560

KEYWORDS: Semiconductor lasers, Quantum efficiency, External quantum efficiency, Pulsed laser operation, Polarization, Optical resonators, Mirrors, Medical devices, Laser development, Laser damage threshold

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Proceedings Article | 17 March 2023 Presentation

Fabrication of vertical UV light-emitting devices by separation of sapphire substrates (Conference Presentation)

Motoaki Iwaya, Toma Nishibayashi, Moe Shimokawa, Ryota Hasegawa, Eri Matsubara, Ryoya Yamada, Yoshinori Imoto, Ryosuke Kondo, Ayumu Yabutani, Sho Iwayama, Tetsuya Takeuchi, Satoshi Kamiyama, Hideto Miyake, Kohei Miyoshi, Koichi Naniwae, Akihiro Yamaguchi

Proceedings Volume PC12441, PC124410A (2023) https://doi.org/10.1117/12.2646756

KEYWORDS: Ultraviolet radiation, Sapphire, Light emitting diodes, Semiconductor lasers, Ultraviolet light emitting diodes, Semiconductors, Semiconducting wafers, Luminescence, High power lasers, Deep ultraviolet

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