强激光与粒子束, 2006, 18 (8): 1271, 网络出版: 2007-01-11   

部分相干电磁光束在湍流介质中传输的偏振变化

Changes of polarization of partially coherent electromagnetic beams propagating throug turbulent atmosphere
作者单位
华侨大学,电子科学与技术系,光学与光子学研究所,福建,泉州,362021
摘要
从推广的惠更斯-菲涅尔原理出发,推导出了部分相干电磁光束的偏振态在湍流介质中传输的表达式.并以电磁高斯-谢尔模型(EGSM)光束为例,研究了湍流对电磁高斯-谢尔模型光束偏振态的影响.研究结果表明,对于轴上点,湍流介质的折射率结构常数越大,偏振度趋于最大值的速度越快,达到的最大值越小;光斑越大,偏振度达到最大值的位置离光源越远,在光斑增大的过程中,偏振度所达到的极大值会先增大后减小,最后保持与光源相同的偏振度不变.对于轴外点,一个固定的z,光的偏振度随着离轴距离的增大而逐渐下降,并最终等于零.折射率结构常数越大,偏振度随离轴距离的增大而下降得越缓慢;光斑越大,偏振度随离轴距离的增大下降得越快.
Abstract
参考文献

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石丽芬, 蒲继雄, 陈子阳. 部分相干电磁光束在湍流介质中传输的偏振变化[J]. 强激光与粒子束, 2006, 18(8): 1271. 石丽芬, 蒲继雄, 陈子阳. Changes of polarization of partially coherent electromagnetic beams propagating throug turbulent atmosphere[J]. High Power Laser and Particle Beams, 2006, 18(8): 1271.

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