基于空间光调制器的全息透镜记录波前像差优化方法  

Optimizing Approach of Wavefront Aberration in the Recording of Holographic Lens Based on Spatial Light Modulator

作　　者：韩剑[1] 刘娟[1] 刘冬梅[1] 胡滨[1] 王涌天[1] 

机构地区：[1]北京理工大学光电学院,北京100081

出　　处：《中国激光》2014年第2期167-174,共8页Chinese Journal of Lasers

基　　金：国家自然科学基金(61235002);国家973计划(2013CB328801;2013CB328806)

摘　　要：提出了一种基于空间光调制器(SLM)的全息透镜(HL)记录波前像差的优化方法。从波像差理论出发,经过理论分析得出透射式全息透镜的像差表达式与像差特性,绘制了全息透镜的一维像差曲线,提出了基于空间光调制器的全息透镜波前像差优化方法。使用空间光调制器加载全息图,通过单次曝光记录全息透镜减小像差的方法进行了理论分析,并针对空间光调制器的零级串扰以及视场孔径光阑对全息图和像差的影响进行了讨论。使用优化后的全息图函数计算出包含非球面信息的全息图,设计了基于空间光调制器的全息透镜记录与成像实验,实验结果与理论分析相符合。A novel method is presented to optimize recording wavefront aberration of holographic lens （HL） based on spatial light modulator （SLM）. According to the theory of wavefront aberration, aberration characteristics and expressions are obtained, and one-dimensional aberration curves are drawn, and optimizing approach of holographic lens based on SLM is proposed. We theoretically analyze the approach of reducing aberrations by recording the holographic lens via single exposure with a hologram loaded on the SLM. The effect which zero-order crosstalk of the SLM does to the holograms as well as the stop surface of the field of view does to the aberrations is discussed. Using the optimized hologram containing the aspheric information, we design the experiment of recording the holographic lens based on the SLM, and the result is consistent with the theoretical analysis.

关 键 词：全息 全息透镜 单次曝光 空间光调制器 

分 类 号：O438.1[机械工程—光学工程]