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

Autor:	Ryosuke Kondo, Ayumu Yabutani, Tomoya Omori, Kazuki Yamada, Eri Matsubara, Ryota Hasegawa, Toma Nishibayashi, Sho Iwayama, Tetsuya Takeuchi, Satoshi Kamiyama, Hideto Miyake, Motoaki Iwaya
Rok vydání:	2022
Předmět:	Physics and Astronomy (miscellaneous)
Zdroj:	Applied Physics Letters. 121:253501
ISSN:	1077-3118 0003-6951
DOI:	10.1063/5.0135033
Popis:	In this study, AlGaN-based ultraviolet-B band laser diodes with 150-mW peak output power in pulsed operation were demonstrated at room temperature. The oscillation wavelength, differential quantum efficiency, and slope efficiency of a laser diode were 300 nm, 3.6%, and 0.15 W/A, respectively. These results were obtained by increasing the injection efficiency and decreasing the positive fixed polarization charge formed at the interface between a p-side waveguide layer and an electron blocking layer when polarization doping is formed in a p-AlGaN cladding layer.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::927dfe102e461a7a9a4ce718f6fb6628 https://doi.org/10.1063/5.0135033 Zobrazit plný text záznamu