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Continuous Beam Steering From A Segmented Liquid Crystal Optical Phased ArrayOptical communications to and from deep space probes will require beams possessing divergence on the order of a microradian, and must be steered with sub-microradian precision. Segmented liquid crystal spatial phase modulators, a type of optical phased array, are considered for this ultra-high resolution beam steering. It is shown here that in an ideal device of this type, there are ultimately no restrictions on the angular resolution. Computer simulations are used to obtain that result, and to analyze the influence of beam truncation and substrate flatness on the performance of this type of device.
Document ID
20030020749
Acquisition Source
Glenn Research Center
Document Type
Preprint (Draft being sent to journal)
Authors
Pouch, John
(NASA Glenn Research Center Cleveland, OH, United States)
Nguyen, Hung
(NASA Glenn Research Center Cleveland, OH, United States)
Miranda, Felix
(NASA Glenn Research Center Cleveland, OH, United States)
Titus, Charles M.
(Kent State Univ. OH, United States)
Bos, Philip J.
(Kent State Univ. OH, United States)
Date Acquired
August 21, 2013
Publication Date
November 25, 2002
Publication Information
Publisher: SPIE
Subject Category
Optics
Funding Number(s)
CONTRACT_GRANT: NAG3-2539
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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