环形参考光下的傅里叶全息图像边缘锐化研究#br#

doi:10．14139/j．cnki．cn22－1228．2026．03．005

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摘要傅里叶变换全息实验是近代物理实验中信息光学方面的经典项目之一，极大帮助了对光学频谱、阿贝成像原理、空间滤波等原理和概念的深入理解和灵活运用。通过光路设计和搭建，采用横截面为环形的参考光斑，直接对空间频谱面上的高频信息进行了干涉记录，在记录的同时实施了高通空间滤波，从而使得再现图像边缘锐化。实验结果表明，环形参考光有效抑制了低频成分，使再现像边缘对比度明显提升。

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	陈姝颖
	陈欢
	付美城
	衣文军
	张怡
	张振福
	韩云鑫
	于洋
	罗淑芳
	何新

关键词: 傅里叶变换全息图空间滤波边缘锐化

Abstract: Fourier transform holography is a fundamental and classic optical project in modern physics experiment，which can offer deep understanding and flexible application of spatial spectrum，Abbe's imaging principle，and spatial filtering．In this work，a modified holographic setup was designed and constructed．An annular reference beam was employed to directly interfere with the high-frequency components on the spatial plane．This approach enables simultaneous high-pass spatial filtering during recording，thereby enhancing the edge sharpness in the reconstructed image．Experimental results demonstrate that the annular reference beam suppresses the low-frequency components significantly and improves the edge contrast for both simple andcomplex objects．Therefore，a marked improvement in the edge contrast of the reconstructed image is achieved．

Key words: Fourier transform hologram spatial filtering edge sharpening

发布日期: 2026-06-25

ZTFLH:
	O 438．1

基金资助: 国家自然科学基金项目(12272407)

引用本文:

陈姝颖, 陈欢, 付美城, 衣文军, 张怡, 张振福, 韩云鑫, 于洋, 罗淑芳, 何新 . 环形参考光下的傅里叶全息图像边缘锐化研究#br#[J]. 大学物理实验, 2026, 39(3): 27-34.
CHEN Shuying, CHEN Huan, FU Meicheng, YI Wenjun, ZHANG Yi, ZHANG Zhenfu, HAN Yunxin, YU Yang, LUO Shufang, HE Xin . Ｒesearch on Edge Enhancement of Fourier Holograms Using an Annular Ｒeference Beam#br#. Physical Experiment of College, 2026, 39(3): 27-34.

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https://dawushiyan.jlict.edu.cn/CN/ 10．14139/j．cnki．cn22－1228．2026．03．005 或 https://dawushiyan.jlict.edu.cn/CN/Y2026/V39/I3/27

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