光子学报, 2006, 35 (1): 0065, 网络出版: 2010-06-03
平行排列液晶器件的波前调制特性
The Wavefront Modulation Characteristics of the Parallel Aligned Liquid Crystal Device
摘要
设计了一种新型的平行排列液晶相位调制器(LC PM)，可在纯相位的模式下进行相位调制，研究了液晶相位调制器的光学特性，理论上给予了分析．对畸变波前进行了调制，在1cm2的校正面积上，调制后的准确度PV(peak to valley)值接近λ／15(λ=0．6328μm)，RMS(Root Means Square)可达到λ／100，斯特列尔比SR(Strehl Ratio)达到0．989．改变了传统的扭曲向列液晶器件难于进行纯相位调制和得到高准确度调制的缺点，达到了理想的效果．
Abstract
The novel parallel-aligned liquid crystal spatial light modulator(LC SLM)is introduced,which is designed to operate at phase-only mode for wavefront correction. The optical characteristics characteristics of the LC SLM were measured and analyzed theoretically. The PV(Peak Valley)value of 0.07049λ(λ=0.6328 μm)after correction on the area of 1 cm2 was obtained with our phase-only LC SLM.And Strehl ratio of 0.989 in our experiment indicates the approximate upper limit of the ability of LC SLM to correct a aberrated wavefront when it is used in adaptive optical system.
刘永军, 宣丽, 胡立发, 曹召良, 李大禹, 穆全全, 鲁兴海. 平行排列液晶器件的波前调制特性[J]. 光子学报, 2006, 35(1): 0065. Liu Yongjun, Xuan Li, Hu Lifa, Cao Zhaoliang, Li Dayu, Mu Quanquan, Lu Xinghai. The Wavefront Modulation Characteristics of the Parallel Aligned Liquid Crystal Device[J]. ACTA PHOTONICA SINICA, 2006, 35(1): 0065.
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