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部分相干光束在湍流大气中传输时的偏振变化

DOI: 10.11830/ISSN.1000-5013.2008.02.0198

Keywords: 部分相干光, 偏振, 衍射积分, 湍流大气

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Abstract:

根据电磁高斯-谢尔模型(EGSM)光束在湍流大气中传输时偏振特性的理论模型,研究EGSM光束在湍流介质中传输时整个光场的偏振特性.考察光源的偏振度、光源平面x,y两个方向的相干长度,以及光斑大小对光束偏振特性的影响.研究结果表明,部分相干光在湍流介质中传输时,偏振特性不仅会随着传输距离的增加而变化,而且在同一观察面内(z固定),偏振度也随位置的不同而不同.

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