DIFFUSERS IN DIGITAL HOLOGRAPHY

被引:84
作者
BRAUER, R
WYROWSKI, F
BRYNGDAHL, O
机构
[1] Department of Physics, University of Essen, Essen
关键词
D O I
10.1364/JOSAA.8.000572
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
In Fourier and Fresnel holography diffuse illumination is used to smooth the power spectrum of the object wave. A speckle pattern will then disturb the diffraction pattern. We present methods to calculate appropriate diffusers in digital holography that do not introduce speckle. The considerations include deterministic object-independent as well as iteratively calculated object-dependent diffusers. Object-independent diffusers are suited for initial phases to avoid stagnation of the iterative procedure.
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页码:572 / 578
页数:7
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