Transformation and spectrum properties of partially coherent beams in the fractional Fourier transform plane

被引：37

作者：

Cai, YJ ^{[1
]}

Lin, Q

机构：

[1] Zhejiang Univ, Inst Opt, Hangzhou 310028, Peoples R China

[2] Zhejiang Univ, State Key Lab Modern Opt Instrumentat, Hangzhou 310028, Peoples R China

来源：

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION | 2003年 / 20卷 / 08期

关键词：

D O I：

10.1364/JOSAA.20.001528

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

An analytical and concise formula is derived for the fractional Fourier transform (FRT) of partially coherent beams that is based on the tensorial propagation formula of the cross-spectral density of partially coherent twisted anisotropic Gaussian-Schell-model (GSM) beams. The corresponding tensor ABCD law performing the FRT is obtained. The connections between the FRT formula and the generalized diffraction integral formulas for partially coherent beams passing through aligned optical systems and misaligned optical systems are discussed. With use of the derived formula, the transformation and spectrum properties of partially coherent GSM beams in the FRT plane are studied in detail. The results show that the fractional order of the FRT has strong effects on the transformation properties and the spectrum properties of partially coherent GSM beams. Our method provides a simple and convenient way to study the FRT of twisted anisotropic GSM beams. (C) 2003 Optical Society of America.

引用

页码：1528 / 1536

页数：9

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