Document Type

Article

Publication Date

10-2004

Publication Source

Optical Engineering

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.

Inclusive pages

2312-2321

ISBN/ISSN

0091-3286

Document Version

Published Version

Comments

Paper is made available for download with the permission of the publisher and the author. Permission documentation is on file.

One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.

Publisher

Society of Photo Optical Instrumentation Engineers

Volume

43

Issue

10

Peer Reviewed

yes

Link to published version

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