Twin-image noise in optical scanning holography

被引：9

作者：

Doh, KB ^{[1
]}

Poon, TC ^{[1
]}

Indebetouw, G ^{[1
]}

机构：

[1] VIRGINIA POLYTECH INST & STATE UNIV,DEPT PHYS,BLACKSBURG,VA 24061

来源：

OPTICAL ENGINEERING | 1996年 / 35卷 / 06期

关键词：

electronic holography; twin-image noise; scanning holography; Gaussian beam; Fresnel zone plate;

D O I：

10.1117/1.600738

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In optical scanning holography, holographic information of an object is generated by 2-D active optical scanning. The optical scanning beam can be a time-dependent Gaussian apodized Fresnel zone plate. We first derive the resolution achievable with such a scanning beam. We then show through computer simulations that the use of a larger Fresnel zone plate for holographic recording leads to a noisier twin-image reconstruction in the near field, thereby degrading the resolution. This is particularly noticeable with objects of more complicated structures. (C) 1996 Society of Photo-Optical instrumentation Engineers.

引用

页码：1550 / 1555

页数：6

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