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Optical Engineering

Improved aperture for modulation transfer function measurement of detector arrays beyond the Nyquist frequency
Author(s): Alfred D. Ducharme; Sarah P. Temple
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Paper 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.

Paper Details

Date Published: 1 September 2008
PDF: 6 pages
Opt. Eng. 47(9) 093601 doi: 10.1117/1.2976798
Published in: Optical Engineering Volume 47, Issue 9
Show Author Affiliations
Alfred D. Ducharme, Univ. of Central Florida (United States)
Sarah P. Temple, College of Optics & Photonics/Univ. of Central Florida (United States)


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