Ryota Hasegawa

Recent development of UV-B laser diodes

Motoaki Iwaya, Shunya Tanaka, Tomoya Omori et al. · Japanese Journal of Applied Physics · 2021 · 26 citations

Engineering, Materials Engineering, Materials Science +14

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

Engineering, Materials Engineering, Materials Science +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

Engineering, Electrical Engineering, Materials Science +17

Fabrication of vertical AlGaN-based deep-ultraviolet light-emitting diodes operating at high current density (∼43 kA cm⁻²) using a laser liftoff method

Moe Shimokawa, Yuya Yamada, Tomoya Omori et al. · Applied Physics Express · 2022 · 14 citations

Engineering, Electrical Engineering, Materials Science +17