Polarization modulation for a stochastic electromagnetic beam passing through a chiral medium.
Polarization modulation for a stochastic electromagnetic beam passing through a chiral medium.
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DOI：
10.1364/ol.36.002683
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发表时间：
2011-07
期刊：
影响因子：
3.6
通讯作者：
F. Zhuang;X. Du;Daomu Zhao
中科院分区：
文献类型：
--
作者：
F. Zhuang;X. Du;Daomu Zhao
研究了随机电磁波束在手性介质中的传播。推导出交叉谱密度矩阵，并利用该矩阵计算了光束在传输过程中光谱偏振度的变化。结果表明，通过改变介质的手性参数和光束的相干参数，可以调制光谱的偏振度。此外，有趣的是发现随机电磁波束在远区传播时的光谱极化度与源的不同。
We study the propagation of a stochastic electromagnetic beam through a chiral medium. The cross-spectral density matrix is deduced and employed to calculate the changes in the spectral degree of polarization of the beam on propagation. It is shown that the spectral degree of polarization can be modulated by changing the chiral parameter of the medium and the coherent parameter of the beam. Also, it is interesting to find that the spectral degree of polarization of a stochastic electromagnetic beam on propagation in far zone is different from that of the source.