M2-factor of a stochastic electromagnetic beam in a Gaussian cavity

被引：22

作者：

Zhu, Shijun ^{[1
]}

Cai, Yangjian ^{[1
]}

机构：

[1] Soochow Univ, Sch Phys Sci & Technol, Suzhou 215006, Peoples R China

来源：

OPTICS EXPRESS | 2010年 / 18卷 / 26期

基金：

中国国家自然科学基金;

关键词：

SCHELL-MODEL BEAMS; PARTIALLY COHERENT BEAM; LASER RESONATOR MODES; HARD-EDGED APERTURES; TURBULENT ATMOSPHERE; PROPAGATION FACTOR; MASER INTERFEROMETER; M-2; FACTOR; POLARIZATION; RADIATION;

D O I：

10.1364/OE.18.027567

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

With the help of a tensor method, an explicit expression for the M-2-factor of a stochastic electromagnetic Gaussian Schell-model (EGSM) beam in a Gaussian cavity is derived. Evolution properties of the M-2-factor of an EGSM beam in a Gaussian cavity are studied numerically in detail. It is found that the behavior of the M-2-factor of an EGSM beam in a Gaussian cavity is determined by the statistical properties of the source beam and the parameters of the cavity. Thermal lens effect induced changes of the M-2-factor of an EGSM beam in a Gaussian cavity is also investigated. Our results will be useful in many applications, such as free-space optical communications, laser radar system, optical trapping and optical imaging, where stochastic electromagnetic beams are required. (C)2010 Optical Society of America

引用

页码：27567 / 27581

页数：15

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