复振幅调制相息图编码及滤波系统的优化设计  

Optimal Design of Kinoform Encoding and Filtering System Based on Complex Amplitude Modulation

作　　者：桂进斌[1] 张凯 李俊昌[1] 宋庆和[1] 方青 Gui Jinbin;Zhang Kai;Li Junchang;Song Qinghe;Fang Qing(Faculty of Science,Kunming University of Science and Technology1,Kunming,Yunnan 650550,China)

机构地区：[1]昆明理工大学理学院,云南昆明650550

出　　处：《光学学报》2021年第15期67-76,共10页Acta Optica Sinica

基　　金：国家重点研发计划(2018YFB2200500);国家自然科学基金(62065010,61565011,61764008)。

摘　　要：提出了一种全息三维(3D)显示光学系统滤波窗的优化设计方法。首先,基于标量衍射理论,用复振幅编码方法获得相息图,研究了相息图再现光场在光学系统焦平面上的频谱分布。然后,导出了重建物光场在光学系统焦平面上的频谱中心位置和频率分布公式,并进行了实验验证。最后,提出了一种基于纯相位型空间光调制器全息显示系统滤波窗的优化设计方法。理论仿真及光学实验结果表明,该优化方法可获得优化编码的相息图,且能设计高质量的全息3D显示系统,从而获得高质量的全息再现像。This paper proposes an optimal design method of filter window for the holographic three-dimensional(3 D)display optical system.First,based on scalar diffraction theory,the complex amplitude coding method is used to obtain the kinoform,and the spectrum distribution of the reconstructed light field of the kinoform on the focal plane of the optical system is studied.Then,the spectrum center position and frequency distribution formula of the reconstructed object light field on the focal plane of the optical system are derived and verified by experiments.Finally,an optimized design method for the filter window of the holographic display system based on the phase-only spatial light modulator is proposed.The results of theoretical simulation and optical experiment show that the optimization method can obtain kinoform with optimal encoding,and can design a high quality holographic 3 D display system to obtain high quality holographic reproduced images.

关 键 词：全息 全息三维显示 空间光调制器 相息图 滤波系统 

分 类 号：O438.1[机械工程—光学工程]