红外波段下湿度对偏振光传输特性的影响

发布时间：2018-05-08 05:02

本文选题：红外波段 + 湿度　；参考：《光子学报》2017年05期

【摘要】：针对红外波段下湿度对偏振光传输特性的影响问题,以自然界中较常见的烟煤粒子作为研究对象,采用蒙特卡洛法仿真研究,不同红外波段下湿度对线偏光和圆偏光传输特性的影响情况及其之间差异特性.结果表明:在短波波段,线偏光与圆偏光的偏振度随湿度的增加都呈现逐渐上升的趋势;在中波波段,随湿度的增加两种偏振光都呈现下降趋势;而在长波波段,湿度对偏振状态几乎没有影响.进一步比较可知,在短波波段,圆偏光具有更好的偏振特性,而在中长波情况下,线偏光的偏振特性更加显著.因此,在应用红外偏振进行探测时,本研究对波段的选取、湿度的控制及偏振态的应用具有重要的指导意义.
[Abstract]:Aiming at the influence of humidity on the transmission characteristics of polarized light in infrared band, the bituminous coal particles, which are common in nature, are studied by Monte Carlo method. The influence of humidity on the transmission characteristics of linear and circular polarized light in different infrared bands and the difference between them. The results show that the degree of polarization of linear and circular polarized light increases gradually with the increase of humidity in the short wave band, the decreasing trend of both polarized light with the increase of humidity in the middle wave band, while in the long wave band, the polarization degree of the linear and circular polarized light increases with the increase of humidity. Humidity has little effect on the polarization state. Further comparison shows that circular polarized light has better polarization characteristics in shortwave band and linear polarized light has more obvious polarization characteristics in medium and long wavelengths. Therefore, this study is of great significance for the selection of band, the control of humidity and the application of polarization state in infrared polarization detection.
【作者单位】：长春理工大学空地激光通信国防重点学科实验室;长春理工大学电信学院;
【基金】：国家高技术研究发展计划(No.201*******070) 国家重点基础研究发展计划(No.6****5) 长春理工大学青年基金(No.QXNJJ-2014-16)资助~~
【分类号】：O436.3

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