Back to Search
Start Over
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
- Source :
- Applied Physics Letters. 121:253501
- Publication Year :
- 2022
- Publisher :
- AIP Publishing, 2022.
-
Abstract
- 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.
- Subjects :
- Physics and Astronomy (miscellaneous)
Subjects
Details
- ISSN :
- 10773118 and 00036951
- Volume :
- 121
- Database :
- OpenAIRE
- Journal :
- Applied Physics Letters
- Accession number :
- edsair.doi...........927dfe102e461a7a9a4ce718f6fb6628