3 November 1999 Fast liquid crystal adaptive mirror for wavefront correction
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We have designed and constructed a prototype adaptive mirror using a nematic liquid crystal as the optical phase modulating material. The mirror has 127 hexagonal elements (actuators) in a 12 mm diameter clear aperture. The liquid crystal is a dual-frequency type that can be driven both parallel to, and orthogonal to, the external driving field by changing the drive frequency. With the dual-frequency liquid crystal we have achieved 1 micron of optical phase delay with full-cycle switching times of 6 ms. The electronic driver was designed to interface with an IBM compatible PC.
© (1999) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Michael H. Anderson, Michael H. Anderson, Loren Max Caldwell, Loren Max Caldwell, Craig R. Scheffler, Craig R. Scheffler, } "Fast liquid crystal adaptive mirror for wavefront correction", Proc. SPIE 3760, High-Resolution Wavefront Control: Methods, Devices, and Applications, (3 November 1999); doi: 10.1117/12.367601; https://doi.org/10.1117/12.367601

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