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Type: Journal article
Title: Genetic optimization of modulation characteristics for two twisted nematic liquid crystal spatial light modulators
Author: Kelly, T.L.
Munch, J.
Citation: Optical and Quantum Electronics, 1999; 31(5-7):515-523
Publisher: Kluwer Academic Publishers
Issue Date: 1999
ISSN: 0306-8919
Statement of
Thu-Lan Kelly and Jesper Munch
Abstract: A single twisted nematic liquid crystal spatial light modulator may suffer from coupled amplitude modulation and a phase modulation capability of less than 2π, although almost all panels can achieve π. Two twisted nematic liquid crystal panels can be combined in an optical system to produce a total phase modulation of at least 2π, and a minimal coupled amplitude modulation. A genetic algorithm is used to optimize the combined modulation characteristics of two liquid crystal panels in a multiplicative architecture. Simulation results and experimental verification are presented which show a substantial reduction in the combined amplitude modulation, and a total phase modulation of 2π.
Keywords: Genetic optimization; modulation; twisted nematic; liquid crystal spatial light modulators
Rights: © 1999 Kluwer Academic Publishers
RMID: 0030003912
DOI: 10.1023/A:1006927430793
Appears in Collections:Physics publications
Environment Institute publications

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