Fast liquid crystal adaptive mirror for wavefront correction

1999 ◽  
Author(s):  
Michael H. Anderson ◽  
Loren M. Caldwell, Jr. ◽  
Craig R. Scheffler
Keyword(s):  
Liquid Crystal ◽  
Wavefront Correction ◽  
Adaptive Mirror

scholarly journals Phase-only liquid crystal spatial light modulator for wavefront correction with high precision

2004 ◽  
Vol 12 (26) ◽  
pp. 6403 ◽  
Author(s):  
Lifa Hu ◽  
Li Xuan ◽  
Yongjun Liu ◽  
Zhaoliang Cao ◽  
Dayu Li ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
High Precision ◽  
Spatial Light Modulator ◽  
Light Modulator ◽  
Wavefront Correction

Stressed liquid-crystal optical phased array for fast tip-tilt wavefront correction

2005 ◽  
Vol 44 (36) ◽  
pp. 7754 ◽  
Author(s):  
Bin Wang ◽  
Guoqiang Zhang ◽  
Anatoliy Glushchenko ◽  
John L. West ◽  
Philip J. Bos ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Phased Array ◽  
Wavefront Correction ◽  
Optical Phased Array

High-Resolution Correction of Arbitrary Wavefront Aberration Using Liquid Crystal Spatial Light Modulator

2011 ◽  
Vol 121-126 ◽  
pp. 877-881
Author(s):  
Hong Xin Zhang ◽  
Xiao Xi Xu
Keyword(s):  
Liquid Crystal ◽  
High Resolution ◽  
Spatial Light Modulator ◽  
Low Cost ◽  
Phase Conjugation ◽  
Astronomical Observation ◽  
Wavefront Aberration ◽  
Strehl Ratio ◽  
Light Modulator ◽  
Wavefront Correction

Wavefront correction plays significant role in some fields like astronomical observation, laser processing and medical imaging, etc. Liquid crystal spatial light modulator ( LC SLM) is an ideal device for high-resolution wavefront correction because of its low cost, low consumption, large number of pixels and independent programming control of each unit. It is researched experimentally that LC SLM is used as a wavefront correction device and corrects arbitrary wavefront aberration. Wavefront correction is performed based on phase conjugation and periodic phase modulation with modulo-2π. The experimental results show that the PV value of the irregular wavefront aberration is 1.56λ, RMS value is 0.25 and Strehl ratio is 0.08 before correction, but the PV value of the residual aberration is reduced to 0.26λ, RMS value is 0.02 and Strehl ratio is increased to 0.97 which is approximated diffraction limit after correction. It is proved to be feasible and effective that LC SLM is used to the high-precision and high-resolution wavefront correction.

Development of adaptive mirror for wavefront correction of hard x-ray nanobeam

2008 ◽  
Author(s):  
Takashi Kimura ◽  
Soichiro Handa ◽  
Hidekazu Mimura ◽  
Hirokatsu Yumoto ◽  
Daisuke Yamakawa ◽  
...  
Keyword(s):  
Wavefront Correction ◽  
X Ray ◽  
Adaptive Mirror

scholarly journals Dynamic wavefront correction with a fast liquid-crystal on silicon device of pure phase

2012 ◽  
Vol 61 (8) ◽  
pp. 089501
Author(s):  
Liu Chao ◽  
Hu Li-Fa ◽  
Cao Zhao-Liang ◽  
Mu Quan-Quan ◽  
Peng Zeng-Hui ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Wavefront Correction ◽  
Pure Phase ◽  
Liquid Crystal On Silicon ◽  
Silicon Device

Control of a multi-element dual-frequency liquid crystal device for adaptive optics wavefront correction

2001 ◽  
Author(s):  
David C. Dayton ◽  
John D. Gonglewski ◽  
Sergio R. Restaino ◽  
Stephen L. Browne
Keyword(s):  
Liquid Crystal ◽  
Adaptive Optics ◽  
Dual Frequency ◽  
Wavefront Correction ◽  
Liquid Crystal Device
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