Spectral shift of an electromagnetic Gaussian Schell-model beam propagating through tissue

被引：20
|
作者：
Zhou, Feng [1 ]
Zhu, Shijun [1 ]
Cai, Yangjian [1 ]
机构：
[1] Soochow Univ, Sch Phys Sci & Technol, Suzhou 215006, Peoples R China
来源：
JOURNAL OF MODERN OPTICS | 2011年 / 58卷 / 01期
基金：
中国国家自然科学基金;
关键词：
partially coherent beams; tissue; spectral shift; PARTIALLY COHERENT-LIGHT; POLARIZATION; INVARIANCE; SWITCHES; DENSITY; INDEX;
D O I：
10.1080/09500340.2010.543294
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Based on the unified theory of coherence and polarization for stochastic electromagnetic beams, spectral changes of an electromagnetic Gaussian Schell-model (EGSM) beam propagating through tissue are investigated in detail. Numerical results show that the spectral shift of an electromagnetic GSM beam is closely determined by the parameters of the tissue (e. g. the fractal dimension of tissue and the ensemble-averaged variance of the refractive index fluctuations). The spectral shift changes from blue-shift to red-shift with the increase of the transverse coordinate.
引用
收藏
页码：38 / 44
页数：7
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