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Optical Engineering

Crosstalk model of a deformable-mirror-based infrared scene projector
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Paper Abstract

An analytical model for crosstalk is developed for an infrared scene projector that utilizes a deformable-mirror device as an infrared spatial light modulator. Partial-coherence effects that result from the physical layout of the projection system are included. Crosstalk is determined by defining a crosstalk ratio in the projected image. Crosstalk-ratio calculations are carried out for monochromatic and blackbody projection sources over the 3- to 5-μm wavelength band. The results predict crosstalk ratios of 260:1, 1200:1, and 2400:1 for deformable-mirror pixels of 50, 100, and 150 μm when a blackbody source is used in the projection system. Crosstalk performance is improved at shorter wavelengths and for larger deformable-mirror pixels. The results of a proof-of-principle experiment are included to verify the feasibility of a deformable-mirror device in the projection system.

Paper Details

Date Published: 1 January 1994
PDF: 10 pages
Opt. Eng. 33(1) doi: 10.1117/12.153159
Published in: Optical Engineering Volume 33, Issue 1
Show Author Affiliations
Kenneth J. Barnard
Glenn D. Boreman, Univ. of Central Florida (United States)
Dennis R. Pape, Photonic Systems Inc. (United States)

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