Method for characterizing the overdrive-matrix of a liquid crystal wavefront corrector

ZHANG Ya-chao; HU Li-fa; PENG Zeng-hui; XUAN Li

doi:10.3788/YJYXS20142905.0709

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Method for characterizing the overdrive-matrix of a liquid crystal wavefront corrector

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- Method for characterizing the overdrive-matrix of a liquid crystal wavefront corrector
- Chinese Journal of Liquid Crystals and Displays Vol. 29, Issue 5, Pages: 709-715(2014)
- 作者机构：
  
  1. 中国科学院长春光学精密机械与物理研究所应用光学国家重点实验室,吉林长春,130022
  2. 中国科学院大学北京,100049
- 作者简介：
- 基金信息：
- DOI：10.3788/YJYXS20142905.0709
  CLC： O439
- Received：04 June 2014，
  
  Revised：19 June 2014，
  
  Published：05 October 2014
- 稿件说明：
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张亚超, 胡立发, 彭增辉, 宣丽. 液晶波前校正器过驱动矩阵的测量方法研究[J]. 液晶与显示, 2014,29(5): 709-715

ZHANG Ya-chao, HU Li-fa, PENG Zeng-hui, XUAN Li. Method for characterizing the overdrive-matrix of a liquid crystal wavefront corrector[J]. , 2014,29(5): 709-715
张亚超, 胡立发, 彭增辉, 宣丽. 液晶波前校正器过驱动矩阵的测量方法研究[J]. 液晶与显示, 2014,29(5): 709-715 DOI： 10.3788/YJYXS20142905.0709.

ZHANG Ya-chao, HU Li-fa, PENG Zeng-hui, XUAN Li. Method for characterizing the overdrive-matrix of a liquid crystal wavefront corrector[J]. , 2014,29(5): 709-715 DOI： 10.3788/YJYXS20142905.0709.

摘要

从自适应光学应用的角度，对液晶波前校正器的过驱动矩阵的测量方法进行了系统研究。对量化级次和延迟时间进行了优化，最优量化级次为32级，最优延迟时间为14帧。最后，在延迟时间为14帧时，测量了液晶波前校正器的过驱动矩阵和终到位相矩阵，并对中等强度大气湍流进行了仿真校正，仿真计算结果与理论预期吻合得很好，表明测量方法可行。

Abstract

From the adaptive optics point of view

we investigate the method for characterizing overdrive-matrix (OD) for liquid crystal wavefront corrector (LCWFC) in detail. In addition

the gray level number and delay time are optimized. After optimization

they are the 32 gray levels and the 14 frames delay time

respectively. Finally

OD and terminal phase matrix (TP) were measured and the atmosphere turbulence was corrected in simulation. The root-mean-square of residual wave front was 0.031

which indicated that the measurement method is feasible.

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Keywords

references

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