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Optical Engineering

Wide-angle decentered lens beam steering for infrared countermeasures applications
Author(s): Jennifer L. Gibson; Bradley D. Duncan; Edward A. Watson; John S. Loomis
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Paper Abstract

A beam-steering system consisting of three cemented achromatic doublets is presented. Intended for use in IR countermeasure applications, our system is designed to operate over the 2- to 5-μm spectrum with minimum angular dispersion. We show that dispersion can be minimized by using doublet lenses fashioned from AMTIR-1 and germanium. Our system is designed to be compact and lightweight, with no internal foci, while allowing steering to ±22.5 deg. We also maintain a minimum 2-in. clear aperture for all steering angles, and a nominal divergence of 1 mrad. Plane wave and Gaussian beam analyses of our system are presented.

Paper Details

Date Published: 1 October 2004
PDF: 10 pages
Opt. Eng. 43(10) doi: 10.1117/1.1789137
Published in: Optical Engineering Volume 43, Issue 10
Show Author Affiliations
Jennifer L. Gibson, Anteon Corp. (United States)
Bradley D. Duncan, Univ. of Dayton (United States)
Edward A. Watson, Air Force Research Lab. (United States)
John S. Loomis, Univ. of Dayton (United States)

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