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10 October 2001 Broadband image steering using a liquid crystal device
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Abstract
Here we investigate a novel approach to steering broadband imagery with a Liquid Crystal Optical Phased Array (LCOPA). Our approach overcomes the deleterious blurring and echoing effects inherent in the use of such a device. We develop a model for the LCOPA and formulate a method in which a steered, graybody scene may be restored through the application of a Wiener filter. We also show this approach may be extended to scenes that are not strictly composed of graybodies but instead are only spectrally smooth over an appropriate bandwidth. Experimental results are presented that demonstrate the effectiveness of this approach.
© (2001) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Jeffrey J. Weinschenk, Russell C. Hardie, Kenneth J. Barnard, Scott R. Harris, Paul F. McManamon, and Edward A. Watson "Broadband image steering using a liquid crystal device", Proc. SPIE 4369, Infrared Technology and Applications XXVII, (10 October 2001); https://doi.org/10.1117/12.445285
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