Electromagnetic-field calculations for a sphere illuminated by a higher-order Gaussian beam .1. Internal and near-field effects

被引：27
|
作者：
Barton, JP
机构：
[1] Department of Mechanical Engineering, College of Engineering and Technology, University of Nebraska, Lincoln, NE
来源：
APPLIED OPTICS | 1997年 / 36卷 / 06期
关键词：
higher-order Gaussian beams; laser-particle interactions; electromagnetic fields; spherical particle;
D O I：
10.1364/AO.36.001303
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A theoretical procedure has been developed for the determination of internal and external electromagnetic fields that result from the interaction of a higher-order Gaussian beam with a homogeneous sphere. Specific calculations are performed for (1, 0), (0, 1), and (1, 1) mode Hermite-Gaussian beams and for doughnut mode beams of four different polarizations (radial, angular, arced, and helix). The effects of incident beam type on resonance excitation, and on the spatial distribution of the internal and nearsurface electromagnetic fields, are examined. (C) 1997 Optical Society of America.
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页码：1303 / 1311
页数：9
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