基于 4f 照相法的余弦光栅设计研究
王义全,陈 笑 * ,邹斌,蔡园园,张 颖
中央民族大学 理学院,北京 100081
Design of Cosine Grating Based on 4f Photography
WANG Yiquan,CHEN Xiao * ,ZOU Bin,CAI Yuanyuan,ZHANG Ying
摘要
余弦光栅广泛应用于计量学、天文学、集成光学、光通信以及信息处理等诸多领域。基于阿贝成像原理和傅里叶分析技术,提出了利用周期刻画光栅,设计制备不同空间频率的余弦光栅。在置于周期刻画光栅衍射场内的 4f 光学成像系统中引入可变光阑,通过调控进入成像系统的光栅衍射级次和零级光强,从而获得不同衬比度、不同空间频率的余弦光栅。
关键词:
余弦光栅
4f 光学系统
阿贝成像
傅里叶变换
刻画光栅
Abstract:
Cosine gratings are widely applied in metrology,astronomy,integrated optics,optical communication,information processing and many other fields.According to Abbe imaging principle and Fourier analysis technology,cosine gratings with different spatial frequencies are designed by periodic ruled gratings.Cosine gratings with different contrast and spatial frequencies are obtained by adjusting the diffraction order and the zero-order intensity of the grating entering the imaging system.
Key words:
cosine grating
4f optical system
Abbe imaging
Fourier transform
ruled grating
发布日期: 2023-08-25
引用本文:
王义全, 陈 笑 , 邹 斌, 蔡园园, 张 颖.
基于 4f 照相法的余弦光栅设计研究
[J]. 大学物理实验, 2023, 36(4): 24-27.
WANG Yiquan, CHEN Xiao , ZOU Bin, CAI Yuanyuan, ZHANG Ying.
Design of Cosine Grating Based on 4f Photography
. Physical Experiment of College, 2023, 36(4): 24-27.
链接本文:
http://dawushiyan.jlict.edu.cn/CN/10.14139/j.cnki.cn22-1228.2023.04.005
或
http://dawushiyan.jlict.edu.cn/CN/Y2023/V36/I4/24
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