Polarization-multiplexing imaging for phase-only object in dual-wavelength digital holography

被引：0
|
作者：
Chen, Yifei [1 ]
Wang, Zhe [1 ]
Jiang, Zhuqing [1 ]
Wang, Yunxin [1 ]
Rong, Lu [1 ]
机构：
[1] Beijing Univ Technol, Coll Appl Sci, Beijing 100124, Peoples R China
来源：
HOLOGRAPHY, DIFFRACTIVE OPTICS, AND APPLICATIONS VI | 2014年 / 9271卷
关键词：
Digital holography; Dual-wavelength; Polarization-multiplexing; Phase-contrast imaging; POLARIZING SEPARATION; MICROSCOPY;
D O I：
10.1117/12.2071762
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A polarization-multiplexing off-axis dual-wavelength digital holography is presented. The structure of a groove grating is measured by using the polarization-multiplexing dual-wavelength digital holographic system with a co-path optical configuration. Two holograms of the grating is recorded at the wavelengths 671nm and 656nm by using a pair of CCDs, and then their two phase maps are reconstructed by numerical simulation of diffraction process of the holograms, respectively. The synthetic phase image is obtained by subtracting two phase images directly. Thus, the unwrapping phase map of the grating is achieved by using the polarization-multiplexing dual-wavelength digital holography in the off-axis optical setup.
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页数：7
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