Performance of a high-resolution wavefront control system using a liquid crystal spatial light modulator

2000 ◽  
Author(s):  
Charles A. Thompson ◽  
Michael W. Kartz ◽  
Scot S. Olivier ◽  
James M. Brase ◽  
Carmen J. Carrano ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Control System ◽  
High Resolution ◽  
Spatial Light Modulator ◽  
Light Modulator ◽  
Wavefront Control

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.

Liquid crystal high-resolution optically addressed spatial light modulator using a nanodimensional chalcogenide photosensor

2014 ◽  
Vol 39 (7) ◽  
pp. 2048 ◽  
Author(s):  
Miri Gelbaor Kirzhner ◽  
Matvey Klebanov ◽  
Victor Lyubin ◽  
Neil Collings ◽  
I. Abdulhalim
Keyword(s):  
Liquid Crystal ◽  
High Resolution ◽  
Spatial Light Modulator ◽  
Light Modulator

Wavefront control with a spatial light modulator containing dual-frequency liquid crystal

2004 ◽  
Author(s):  
Dong-Feng Gu ◽  
Bruce Winker ◽  
Bing Wen ◽  
Don Taber ◽  
Andrew Brackley ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Spatial Light Modulator ◽  
Dual Frequency ◽  
Light Modulator ◽  
Wavefront Control
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