Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 1999 Sep 17;285(5435):1905-6.
doi: 10.1126/science.285.5435.1905.

Room temperature lasing at blue wavelengths in gallium nitride microcavities

T Someya  1 , R Werner, A Forchel, M Catalano, R Cingolani, Y Arakawa
Affiliations

Room temperature lasing at blue wavelengths in gallium nitride microcavities

T Someya et al. Science. .

Abstract

Lasing action has been demonstrated at blue wavelengths in vertical cavity surface-emitting lasers at room temperature. The microcavity was formed by sandwiching indium gallium nitride multiple quantum wells between nitride-based and oxide-based quarter-wave reflectors. Lasing action was observed at a wavelength of 399 nanometers under optical excitation and confirmed by a narrowing of the linewidth in the emission spectra from 0.8 nanometer below threshold to less than 0.1 nanometer (resolution limit) above threshold. The result suggests that practical blue vertical cavity surface-emitting lasers can be realized in gallium-nitride-based material systems.

PubMed Disclaimer

LinkOut - more resources