Measuring Stokes parameters by means of a polarization grating

被引:283
作者
Gori, F
机构
[1] Univ Roma Tre, Dipartimento Fis, I-00146 Rome, Italy
[2] Ist Nazl Fis Mat, I-00146 Rome, Italy
关键词
D O I
10.1364/OL.24.000584
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Ordinary gratings act on the amplitude and (or) the phase of a wave front. Polarization gratings produce instead a periodic modulation of the state of polarization. A simple grating of the latter type is constituted by a linear polarizer whose orientation varies periodically along a Line. It is shown that, for a generic polarization state of the incident field, such a grating gives rise to first-order diffracted beams with counterrotating circular polarizations. It is also shown that such a grating can be used for measuring the Stokes parameters of a light beam in an achromatic manner. Several extensions are briefly discussed. (C) 1999 Optical Society of America.
引用
收藏
页码:584 / 586
页数:3
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