A FDTD solution of scattering of laser beam with orbital angular momentum by dielectric particles: Far-field characteristics

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• 作者：Wenbo Sun^a ; ^{wenbo.sun-1@nasa.gov} ; Yongxiang Hu^b ; Carl Weimer^c ; Kirk Ayers^a ; Rosemary R. Baize^b ; Tsengdar Lee^d
• 关键词：Electromagnetic beams ; Orbital angular momentum ; Scattering ; Remote sensing
• 刊名：Journal of Quantitative Spectroscopy and Radiative Transfer
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：188
• 期：Complete
• 页码：200-213
• 全文大小：7923 K
• 卷排序：188

文摘

Scattering of orbital angular momentum (OAM) laser beam by dielectric particles is studied. The 3D CPML FDTD technique is applied in the solution of OAM laser beam scattering. Forward-scattering peak disappears when laser beam has orbital angular momentum. This feature of OAM beam scattering may result in an accurate profiling of particle layers.