Mie scattering distinguishes the topological charge of an optical vortex: a homage to Gustav Mie

被引：49

作者：

Garbin, Valeria ^{[1
]}

Volpe, Giovanni ^{[2
]}

Ferrari, Enrico ^{[3
]}

Versluis, Michel ^{[1
]}

Cojoc, Dan ^{[3
]}

Petrov, Dmitri ^{[2
,4
]}

机构：

[1] Univ Twente, Phys Fluids Grp, NL-7500 AE Enschede, Netherlands

[2] ICFO, Barcelona 08860, Spain

[3] CNR, INFM, Lab Nazl TASC, I-30142 Trieste, Italy

[4] ICREA, Passeig Llus Companys 23, Barcelona 08010, Spain

来源：

NEW JOURNAL OF PHYSICS | 2009年 / 11卷

关键词：

ORBITAL ANGULAR-MOMENTUM; GAUSSIAN-BEAM; LASER-BEAM; PARTICLES; TWEEZERS; MANIPULATION; LIGHT;

D O I：

10.1088/1367-2630/11/1/013046

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

One century after Mie's original paper, Mie scattering is still a fertile field of scientific endeavor. We show that the Mie scattering distinguishes the topological charge of light beams with phase dislocations. We experimentally and numerically study the scattering of highly focused Laguerre-Gaussian beams by dielectric and metal spheres, and show that the scattered field is sensitive to the modulus and to the sign of the topological charge. The implications for position detection systems are also discussed.

引用

页数：11

共 33 条

[1] Mechanism of angular momentum exchange between molecules and Laguerre-Gaussian beams [J].