Title

Improved aperture for modulation transfer function measurement of detector arrays beyond the Nyquist frequency

Authors

Authors

A. D. Ducharme;S. P. Temple

Comments

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Abbreviated Journal Title

Opt. Eng.

Keywords

modulation transfer functions; speckle; charge-coupled devices; CHARGE-COUPLED-DEVICES; LASER SPECKLE; GENERATION; Optics

Abstract

The design of an aperture for the generation of laser speckle with a flat power spectrum covering a wide band of the measurement spatial-frequency range is presented. This aperture allows for the measurement of modulation transfer function (MTF) from zero to twice the Nyquist frequency of a two-dimensional detector array. This design mitigates many of the measurement problems inherent in other aperture designs. The MTF measurement of a CCD detector array is used to demonstrate the measurement technique and illustrate the advantages of the new aperture design. (C) 2008 Society of Photo-Optical Instrumentation Engineers.[DOI: 10.1117/1.2976798]

Journal Title

Optical Engineering

Volume

47

Issue/Number

9

Publication Date

1-1-2008

Document Type

Article

Language

English

First Page

6

WOS Identifier

WOS:000260511100007

ISSN

0091-3286

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