Letter abstract
Nature Photonics 1, 61 - 64 (2006)doi:10.1038/nphoton.2006.52
Subject Categories: Lasers, LEDs and light sources | Novel materials and engineered structures
Room-temperature continuous-wave lasing in GaN/InGaN microdisks
Adele C. Tamboli1, Elaine D. Haberer1, Rajat Sharma1, Kwan H. Lee2, Shuji Nakamura1 and Evelyn L. Hu1
Abstract
Microdisk lasers feature low-loss, high-quality whispering gallery modes1, 2, 3 that offer the potential for ultralow-threshold lasing4, 5, 6, 7 that is not limited by challenges in mirror fabrication. Here we report fabrication and optical measurements of GaN-based microdisk lasers with a very low threshold of 300 W cm-2—orders of magnitude lower than any previous GaN microdisk laser. This is also the first report of room-temperature, continuous-wave (CW) lasing in a GaN microdisk.
- Materials Department, University of California, Santa Barbara, California 93106-5050, USA
- Department of Physics, University of Oxford, Parks Road, Oxford, OX1 3PU, UK
Correspondence to: Adele C. Tamboli1 e-mail: atamboli@umail.ucsb.edu
