%0 Journal Article
%T Correction method for phase-modulation deviation of liquid crystal spatial light modulator in full-color holographic display<br>彩色全息显示中液晶空间光调制器位相调制偏差的矫正方法
%A Zheng Hua-Dong
%A Yu Ying-Jie
%A Dai Lin-Mao
%A Wang Tao
%A <br>郑华东
%A 于瀛洁
%A 代林茂
%A 王涛
%J 物理学报
%D 2010
%I 
%X It is feasible to realize full-color holographic display based on liquid crystal spatial light modulator by use of multi-wavelength illumination combined with time division multiplexing (TDM) or space division multiplexing (SDM). However, the modulation characteristics of liquid crystal spatial light modulator (LC-SLM) vary with the wavelength of incident laser beam. Especially, the non-linearity and the modulation-depth mismatch of phase modulation curve are the important factors influencing the reconstruction quality of phase hologram in full-color holographic display. In order to solve this problem, a novel method is proposed to correct the gray-scale of phase holograms in the RGB channels with the established gray-mapping model according to the phase modulation curves measured under different wavelengths, and compensate the effects of non-linearity and the modulation-depth mismatch of phase modulation curves. Analysis of numerical and optical reconstruction results are carried out. It is verified that the method is effective to improve the qualities of reconstructed images in the RGB channels.
%K full-color holographic display
%K liquid crystal spatial light modulator (LC-SLM)
%K phase modulation
%K deviation correction<br>彩色全息显示
%K 液晶空间光调制器
%K 位相调制
%K 偏差矫正
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=986FF7B098146348ED65E7DD9A4D0F4C&yid=140ECF96957D60B2&vid=6AC2A205FBB0EF23&iid=9CF7A0430CBB2DFD&sid=3D3FD7C8DE9BD397&eid=436F634AA7F63488&journal_id=1000-3290&journal_name=物理学报&referenced_num=0&reference_num=29