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Proceedings Paper

Spiral-shaped microdisk lasers
Author(s): Michael Kneissl; Grace D. Chern; Mark Teepe; David W Treat; Zhihong H. Yang; Richard K Chang; Noble M. Johnson
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Paper Abstract

Current-injection spiral-shaped microcavity disk laser diodes emitting in the ultraviolet (UV) are reported. We have previously demonstrated spiral microdisk lasers with InGaN multiple quantum well (MQW) gain media emitting near 400 nm and microresonators with an AlGaAs single quantum well (SQW) active regions emitting around 730 nm. In this paper we will extend this concept to UV emitting microdisk laser diodes and demonstrate room-temperature laser operation of InAlGaN heterostructures with emission wavelength near 368 nm and pulsed threshold current densities as low as 6.7 kA/cm2.

Paper Details

Date Published: 1 April 2005
PDF: 4 pages
Proc. SPIE 5738, Novel In-Plane Semiconductor Lasers IV, (1 April 2005); doi: 10.1117/12.597125
Show Author Affiliations
Michael Kneissl, Palo Alto Research Ctr. (United States)
Grace D. Chern, Yale Univ. (United States)
Mark Teepe, Palo Alto Research Ctr. (United States)
David W Treat, Palo Alto Research Ctr (United States)
Zhihong H. Yang, Palo Alto Research Ctr. (United States)
Richard K Chang, Yale Univ. (United States)
Noble M. Johnson, Palo Alto Research Ctr. (United States)

Published in SPIE Proceedings Vol. 5738:
Novel In-Plane Semiconductor Lasers IV
Carmen Mermelstein; David P. Bour, Editor(s)

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