Title

Alignment procedure for radiation pattern measurements of antenna-coupled infrared detectors

Authors

Authors

P. M. Krenz; B. A. Slovick; J. A. Bean;G. D. Boreman

Comments

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Abbreviated Journal Title

Opt. Eng.

Keywords

radiation pattern; alignment procedure; antenna-coupled detector; infrared antenna; Optics

Abstract

An antenna-coupled detector's directional properties can be verified by measuring its angular radiation pattern. At infrared frequencies, this pattern can be measured by rotating the device while illuminating it with a laser beam. An accurate radiation pattern can be measured only if the device is coaligned with the axis of rotation and the focus of the laser beam. In the alignment procedure presented, the device is rotated to various angles and the distance along the orthogonal axis from the current device position to the laser beam is measured by maximizing its response. Calculations based on these distances provide the new location of the device, which will coalign it with the axis of rotation and the focus of the laser beam. The successful alignment enables accurate radiation pattern measurements. (C) 2010 Society of Photo-Optical Instrumentation Engineers. [DOI: 10.1117/1.3365959]

Journal Title

Optical Engineering

Volume

49

Issue/Number

3

Publication Date

1-1-2010

Document Type

Article

Language

English

First Page

5

WOS Identifier

WOS:000276931100007

ISSN

0091-3286

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