Scattering of a focused Laguerre-Gaussian beam by a spheroidal particle

被引：31

作者：

Jiang, Yuesong ^{[1
]}

Shao, Yuwei ^{[1
]}

Qu, Xiaosheng ^{[1
]}

Ou, Jun ^{[1
]}

Hua, Houqiang ^{[1
]}

机构：

[1] BeiHang Univ, Sch Elect & Informat Engn, Beijing 100191, Peoples R China

来源：

JOURNAL OF OPTICS | 2012年 / 14卷 / 12期

基金：

中国国家自然科学基金;

关键词：

Laguerre-Gaussian; spheroid; on-axis; scattering; LORENZ-MIE THEORY; SURFACE ELECTROMAGNETIC-FIELDS; ORBITAL ANGULAR-MOMENTUM; LOCALIZED APPROXIMATION; ARBITRARY ILLUMINATION; LIGHT-SCATTERING; NEAR-SURFACE; SYSTEMS; PROFILE; AXIS;

D O I：

10.1088/2040-8978/14/12/125709

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A focused Laguerre-Gaussian beam scattered by a homogeneous prolate spheroidal particle is studied for on-axis incidence. An approach to expanding a focused Laguerre-Gaussian beam in terms of the spheroidal wavefunctions in spheroidal coordinates is presented. By using the localized approximations method, the beam-shape coefficients are evaluated and the results agree with the cases of on-axis incidence. Calculations of the far-field scattering intensity are performed to study the shaped beam scattered by a spheroid, which has different size parameters and eccentricities.

引用

页数：8

共 29 条

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