Mid-infrared LEDs versus thermal emitters in IR dynamic scene simulation devices

Malyutenko, V. K. and Zinovchuk, A. V. (2006) Mid-infrared LEDs versus thermal emitters in IR dynamic scene simulation devices. Proceedings of SPIE, 6368. 63680D-1. ISSN 9780819464668

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Abstract

In a radical departure from conventional thermal emitter-based dynamic IR scene simulation devices, we have tested InAsSbP/InAs LEDs grown by liquid phase epitaxy and tuned at several peak-emitting wavelengths inside the mid-IR band. Light uniformity, radiation apparent temperature (Ta), thermal resistance, and self heating details were characterized at T=300 K in the microscale by calibrated infrared cameras in the 3-5 mm (light pattern) and 8-12 μm (heat pattern) bands. We show that LEDs are capable of simulating very hot (Ta ³740 K) targets as well as cold objects and low observable with respect to a particular background. We resume that cost effective LEDs enable a platform for photonic scene projection devices able to compete with thermal microemitter MEMS technology in testing and stimulating very high-speed infrared sensors used for military and commercial applications. Proposals on how to further increase LEDs performance are given.

Item Type: Article
Uncontrolled Keywords: LEDs,IR dynamic scene simulation, apparent temperature
Subjects: Q Science > QC Physics
Divisions: Faculty of Physics and Mathematics > Department of Physics and Labor Protection
Depositing User: Богдан Свищ
Date Deposited: 21 Nov 2012 11:52
Last Modified: 10 Oct 2016 09:10
URI: http://eprints.zu.edu.ua/id/eprint/8338

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