拉盖尔-高斯光束的米氏散射：光子纳米射流和近场光学涡旋
Mie scattering of Laguerre-Gaussian beams: photonic nanojets and near-field optical vortices
摘要：
研究了用远场匹配方法重构的拉盖尔-高斯（LG）光束的米氏散射。理论结果被用来分析纯方位角LG光束的近场区域的光场，其特征在于一个非零的方位角模式数$m_{LG}$。发现模式数$m_{LG}$对光子纳米射流的形态和与电场分量相关的光学涡旋的近场结构具有深远的影响。
英文摘要：
We study Mie scattering of Laguerre-Gaussian (LG) light beams remodelled using the method of far-field matching. The theoretical results are used to analyze the optical field in the near-field region for purely azimuthal LG beams characterized by a nonzero azimuthal mode number $m_{LG}$. The mode number $m_{LG}$ is found to have a profound effect on the morphology of photonic nanojets and the near-field structure of optical vortices associated with the components of the electric field.
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