计算全息综合性光电教学实验设计  

Comprehensive Teaching Experimental Design of Computer-generated Holography

作　　者：刘珂瑄 朱昊[1] 何泽浩 李玉和[1] 曹良才[1] LIU Kexuan;ZHU Hao;HE Zehao;LI Yuhe;CAO Liangcai(Department of Precision Instrument,Tsinghua University,Beijing 100084,China)

机构地区：[1]清华大学精密仪器系,北京100084

出　　处：《实验室研究与探索》2024年第2期132-134,168,共4页Research and Exploration In Laboratory

基　　金：国家自然科学基金项目(62035003);中国博士后科学基金项目(BX2021140)。

摘　　要：基于傅里叶光学原理实现对目标光场进行精确重建,设计了从显示目标绘制,相应计算全息图生成到光学重建的综合性教学实验。具体的实验流程包含基于Visio的显示目标设计,基于MATLAB的相位型计算全息图生成算法编写和基于相位型液晶空间光调制器的目标重建光路搭建。实验设计结合了光学、数字电路和计算机软件技术,具有流程清晰、易于教学、学生参与度高和获得感强的优势,可有效增强学生对计算全息技术与光电信息技术的理论理解与实操能力。Computer-generated holography(CGH)can achieve accurate reconstructions of the target optical field based on Fourier optics.Recently,it has obtained extensive attention from both academia and industry and becomes an important part of the physical optics and information optics.To provide students with a deep understanding of CGH,a comprehensive teaching experiment has been proposed.The experiment consists of three main stages,i.e.,target design using Visio,phase-only hologram(POH)generation using MATLAB,and optical reconstruction using a liquid crystal spatial light modulator(SLM).This experimental design combines optics,digital circuits,and computer software technology,which is ease-of-teaching and participatory.As a result,it promotes the students to further understand the basic concepts and experimental operations of CGH as well as opto-electronics technology.

关 键 词：实验教学 计算全息 光场重建 液晶空间光调制器 

分 类 号：O438[机械工程—光学工程] G642[理学—光学]