Angular effects in digital off-axis holography

被引：2
|
作者：
Lai, Guojun [1 ]
Shen, Gongxin [1 ]
Geisler, Reinhard [2 ]
机构：
[1] Beijing Univ Aeronaut & Astronaut, Sch Aeronaut Sci & Engn, Inst Fluid Mech, Beijing 100191, Peoples R China
[2] German Aerosp Ctr, Inst Aerodynam & Flow Technol, D-37073 Gottingen, Germany
来源：
CHINESE OPTICS LETTERS | 2009年 / 7卷 / 12期
基金：
中国国家自然科学基金;
关键词：
PARTICLE IMAGE VELOCIMETRY; NUMERICAL RECONSTRUCTION; MICROSCOPY; COMPENSATION; AMPLITUDE;
D O I：
10.3788/COL20090712.1126
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The relationship between the off-axis angle of the recording setup and the quality of reconstructed particle images in digital off-axis holography is studied. The interference patterns of the same particles in the same plane are recorded at different off-axis angles in horizontal and vertical directions. By means of numerical wave propagation, the particle images are reconstructed so as to evaluate and compare their quality by the numbers of particles picked out and by the signal-to-noise ratio (SNR). The results provide useful information about the relationship between the off-axis angle and the quality of the reconstructed image.
引用
收藏
页码：1126 / 1130
页数：5
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