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Proceedings Paper

New type of liquid crystal wavefront correctors
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Paper Abstract

A new type of phase liquid crystal modulators with distributed electrical parameters is proposed. These modulators make it feasible to use minimal number of electrodes to from a desirable phase shape. We devised methods of control and investigated the modal liquid crystal cylindrical and spherical lenses, and the multi-element wavefront corrector with controlled influence as well. The focusing by means of the adaptive lenses is presented. We demonstrate two approaches in optimal control. The first consists in computing the optimal control voltage through liquid crystal and lens parameters. The second consists in feedback use.

Paper Details

Date Published: 20 January 1999
PDF: 7 pages
Proc. SPIE 3688, 6th International Conference on Industrial Lasers and Laser Applications '98, (20 January 1999); doi: 10.1117/12.337557
Show Author Affiliations
Alexander F. Naumov, P.N. Lebedev Physical Institute (United States)
Mikhail Yu. Loktev, P.N. Lebedev Physical Institute (Netherlands)
Igor R. Guralnik, Samara State Univ. (Russia)
Gleb V. Vdovin, Technische Univ. Delft (Netherlands)

Published in SPIE Proceedings Vol. 3688:
6th International Conference on Industrial Lasers and Laser Applications '98
Vladislav Ya. Panchenko; Vladimir S. Golubev, Editor(s)

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