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Demonstration of yellow (568 nm) stimulated emission from optically pumped InGaN/GaN multi-quantum wells

Journal Article · · Applied Physics Letters
DOI:https://doi.org/10.1063/5.0093264· OSTI ID:1979089

We demonstrate room-temperature stimulated emission at 568 nm from low dislocation density InGaN/GaN multi-quantum wells. For a 1.4 mm long and a 50 $$μ$$4m wide ridge bar optically pumped by a high-power pulsed laser, we observed an emission peak at 568 nm with a narrow spectral width of less than 2 nm at room temperature. The measured pumping threshold is less than 1.5 MW/cm2, and the polarization ratio of the emission is over 90%. In conclusion, this demonstration paves the way for the future development of electrically injected InGaN semiconductor yellow laser diodes.

Research Organization:
University of California, Santa Barbara, CA (United States)
Sponsoring Organization:
USDOE Advanced Research Projects Agency - Energy (ARPA-E); Solid State Lighting and Energy Electronics Center (SSLEEC); Defense Advanced Research Projects Agency (DARPA)
Grant/Contract Number:
AR0000671
OSTI ID:
1979089
Journal Information:
Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 7 Vol. 121; ISSN 0003-6951
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English

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