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Proceedings Paper

Two color IR LED array
Author(s): Naresh C. Das; Frederick Towner
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Paper Abstract

We report the IR electroluminescence in two wavelength bands, 3-4 micron (MWIR) and 8-9 micron (LWIR) regions. The epitaxial structure was grown on an n-type GaSb substrate with the MWIR quantum well (QW) region on top of LWIR QW region and a 0.5 μm contact layer grown in between the two QW regions. We measured the light emission from the top surface of the device with different grating structures. We fabricated square mesas varying from 50 to 200 microns on a side. Both room temperature and cryogenic temperature results show emission in the wavelength regions as designed.

Paper Details

Date Published: 23 April 2010
PDF: 7 pages
Proc. SPIE 7663, Technologies for Synthetic Environments: Hardware-in-the-Loop Testing XV, 766308 (23 April 2010); doi: 10.1117/12.852343
Show Author Affiliations
Naresh C. Das, U.S. Army Research Lab. (United States)
Frederick Towner, Maxion Technologies, Inc. (United States)

Published in SPIE Proceedings Vol. 7663:
Technologies for Synthetic Environments: Hardware-in-the-Loop Testing XV
James A. Buford Jr.; Robert Lee Murrer Jr., Editor(s)

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