Ayumu Yabutani

AlGaN-based UV-B laser diode with a high optical confinement factor

Shunya Tanaka, Yuya Ogino, Kazuki Yamada et al. · Applied Physics Letters · 2021 · 47 citations

Aluminium Nitride, Photonics, Electrical Engineering +13

Recent development of UV-B laser diodes

Motoaki Iwaya, Shunya Tanaka, Tomoya Omori et al. · Japanese Journal of Applied Physics · 2021 · 25 citations

Materials Science, Photonics, Electrical Engineering +13

Reduction of dislocation density in lattice-relaxed Al_0.68Ga_0.32N film grown on periodical 1 μm spacing AlN pillar concave-convex patterns and its effect on the performance of UV-B laser diodes

Tomoya Omori, Ayumu Yabutani, Shunya Tanaka et al. · Applied Physics Express · 2022 · 23 citations

Aluminium Nitride, Engineering, Laser Applications +17

Demonstration of ultraviolet-B AlGaN-based laser diode operation with a peak light output power of 150 mW by improving injection efficiency through polarization charge modulation

Ryosuke Kondo, Ayumu Yabutani, Tomoya Omori et al. · Applied Physics Letters · 2022 · 16 citations

Wide-bandgap Semiconductor, Photonics, Electrical Engineering +13

Reduction of dislocation density in Al0.6Ga0.4N film grown on sapphire substrates using annealed sputtered AlN templates and its effect on UV-B laser diodes

Moe Shimokawa, Shohei Teramura, Shunya Tanaka et al. · Journal of Crystal Growth · 2021 · 14 citations

Materials Science, Materials Engineering, Aluminium Nitride +9