11 September 1998 Progress report of USAF Research Laboratory liquid crystal AO program
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Abstract
In this paper we present a status report of our liquid crystal (LC) adaptive optics program. Liquid crystal have been proposed to be used for adaptive optics components by several authors. We are actively pursuing a two prong approach, on one side we have built a closed loop test bed based on a 127 element nematic LC device; on the other side we are actively involved in research on the ferroelectric side of the LC devices. In this paper we present preliminary results from our testbed. The essential elements of this testbed are a Shack-Hartman based wavefront sensors with an analog reconstructor, and the 127 nematic elements from Meadowlark Optics. Some of the basic experimental parameters will be reviewed, and result will be discussed. Furthermore we will present the status of our activity in the field of ferroelectric LC. Several prototypes are under testing to establish their capabilities as AO components.
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Sergio R. Restaino, Sergio R. Restaino, Don M. Payne, Don M. Payne, Michael H. Anderson, Michael H. Anderson, Jeffrey T. Baker, Jeffrey T. Baker, Steven A. Serati, Steven A. Serati, Gary C. Loos, Gary C. Loos, } "Progress report of USAF Research Laboratory liquid crystal AO program", Proc. SPIE 3353, Adaptive Optical System Technologies, (11 September 1998); doi: 10.1117/12.321694; https://doi.org/10.1117/12.321694
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