小级数Ince-Gaussian光束光强模式分析

发布时间：2018-06-14 15:23

本文选题：物理光学 + 因斯-高斯光束　；参考：《河南科技大学学报(自然科学版)》2017年06期

【摘要】：研究了因斯-高斯(IG)光束级数m较小时,分立光瓣模式的光强分布。通过数值模拟,对IG奇偶模式以及奇偶模式线性叠加生成的PIG分立光瓣模式的光强进行了分析。分析结果表明:m较小时,PIG分立光瓣模式光瓣的空间位置介于奇偶模式之间,但是光瓣的光强分布变化较为明显。同一模式光瓣角向椭圆变量越接近于椭圆长轴,其光强比重越大。在统一总光强后,相同阶数与级数的不同模式光瓣总光强与角向椭圆变量差为一个三次函数的关系。对于偶模椭圆长轴上的光瓣,随着该模式通过PIG~(π/2)模式转化为奇模,该光瓣上的光强分布逐渐由弥散向着逆时针方向集中。
[Abstract]:The intensity distribution of discrete lobes with a small series m is studied. Through numerical simulation, the light intensity of IG discrete optical lobe mode generated by linear superposition of IG parity mode and parity mode is analyzed. The results show that the spatial position of the split light lobe is between parity mode and parity mode, but the light intensity distribution of the light lobe is more obvious. The closer the elliptical variable of the same mode is to the elliptical axis, the greater the specific gravity of light intensity is. After the unified total light intensity, the relation between the total light intensity of different modes of the same order and series and the difference between the total light intensity and the angular elliptic variable is a cubic function. For the optical lobes on the long axis of even mode ellipse, the intensity distribution of the optical lobes is gradually concentrated from dispersion to counterclockwise with the mode transformed into odd mode by pig (蟺 / 2) mode.
【作者单位】：河南科技大学物理工程学院;
【基金】：国家自然科学基金项目(61205086,11504091) 瞬态光学与光子技术国家重点实验室开放基金项目(SKLST201203) 河南省高等学校青年骨干教师资助计划基金项目(2013071)
【分类号】：O436

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