Directional and controllable edge-emitting ZnO ultraviolet random laser diodes

• Main Authors: Yu, S. F., Yang, H. Y., Liang, H. K.
• Other Authors: School of Electrical and Electronic Engineering
• Format: Article
• Language: English
• Published: 2011
• Subjects: DRNTU::Engineering::Electrical and electronic engineering::Antennas, wave guides, microwaves, radar, radio
• Online Access: https://hdl.handle.net/10356/93851; http://hdl.handle.net/10220/6943
• Institution: Nanyang Technological University

Room-temperature ultraviolet random lasing action is demonstrated from a p-GaN/annealed i-ZnO:Al(3%)/n-ZnO:Al(5%) buried heterojunction diode with a 2 μm rib waveguide. Excellent electrical-to-optical conversion efficiency is achieved by strong electrical and optical confinement of a buried heteroju...