Author(s): Cao Zhao-Liang, Mu Quan-Quan, Hu Li-Fa, Liu Yong-Gang, Peng Zeng-Hui, Xuan Li

Abstract:

“We investigate the accurate control of a liquid crystal wavefront corrector. First, the Gamma correction technique is adopted to amend the nonlinear phase modulation. Then, the control method and wavefront reconstruction are considered. Lastly, a closed loop correction experiment is carried out and a high correction accuracy is obtained with peak to valley (PV) of 0.08λ (λ=632.8nm), the wavefront phase rms 0.015λ, as well as the Strehl ratio of 0.99. The diffraction-limited resolution is achieved.”

Link to Publications Page

Publication: Chinese Physics Letters – via IOP Science, (subscription required)

Issue/Year/DOI: Chinese Physics Letters 2008, Volume 25, Issue 3: 989-992
doi: 10.1088/0256-307X/25/3/050