1 September 2008 Improved aperture for modulation transfer function measurement of detector arrays beyond the Nyquist frequency
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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.
Alfred D. Ducharme, Sarah P. Temple, "Improved aperture for modulation transfer function measurement of detector arrays beyond the Nyquist frequency," Optical Engineering 47(9), 093601 (1 September 2008). https://doi.org/10.1117/1.2976798
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