Direct determination of the generalized Stokes parameters from the usual Stokes parameters

被引：33

作者：

Kanseri, Bhaskar ^{[1
,2
]}

Rath, Shyama ^{[2
]}

Kandpal, Hem Chandra ^{[1
]}

机构：

[1] Natl Phys Lab, Opt Radiat Stand, New Delhi 110012, India

[2] Univ Delhi, Dept Phys & Astrophys, Delhi 110007, India

来源：

OPTICS LETTERS | 2009年 / 34卷 / 06期

关键词：

RANDOM ELECTROMAGNETIC BEAMS; YOUNGS INTERFERENCE EXPERIMENT; POLARIZATION; PROPAGATION; COHERENCE; CONTRASTS;

D O I：

10.1364/OL.34.000719

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report an experimental method to determine the generalized Stokes parameters for a pair of points in the cross section of an electromagnetic beam, e.g., an expanded laser beam, with the help of a Young's interferometer and a set of polarizers and quarter-wave plates. The method is investigated theoretically using the electromagnetic spectral interference law. The generalized Stokes parameters, owing to their two-point nature, determine the behavior of the single-point polarization properties of the electromagnetic beam at a field point. The present method offers a unique means to determine the two-point parameters (correlation functions) by measuring the usual Stokes parameters (intensities) and the contrast parameters (visibilities) of the beam. The method might be applicable to determine the polarization dependent changes in various optical measurements. (C) 2009 Optical Society of America

引用

页码：719 / 721

页数：3

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