Broadband image steering using a liquid crystal device

Jeffrey J. Weinschenk; Russell C. Hardie; Kenneth J. Barnard; Scott R. Harris; Paul F. McManamon; Edward A. Watson

doi:10.1117/12.445285

10 October 2001 Broadband image steering using a liquid crystal device

Jeffrey J. Weinschenk, Russell C. Hardie, Kenneth J. Barnard, Scott R. Harris, Paul F. McManamon, Edward A. Watson

Proceedings Volume 4369, Infrared Technology and Applications XXVII; (2001) https://doi.org/10.1117/12.445285
Event: Aerospace/Defense Sensing, Simulation, and Controls, 2001, Orlando, FL, United States

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.

Citation Download Citation

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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