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1 April 2005 Spiral-shaped microdisk lasers
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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.
© (2005) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Michael Kneissl, Grace D. Chern, Mark Teepe, David W Treat, Zhihong H. Yang, Richard K Chang, and Noble M. Johnson "Spiral-shaped microdisk lasers", Proc. SPIE 5738, Novel In-Plane Semiconductor Lasers IV, (1 April 2005);


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