Symmetry and the generation and measurement of optical torque

被引：38

作者：

Nieminen, Timo A. ^{[1
]}

Asavei, Theodor ^{[1
]}

Loke, Vincent L. Y. ^{[1
]}

Heckenberg, Norman R. ^{[1
]}

Rubinsztein-Dunlop, Halina ^{[1
]}

机构：

[1] Univ Queensland, Sch Math & Phys, Brisbane, Qld 4072, Australia

来源：

JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER | 2009年 / 110卷 / 14-16期

关键词：

Optical tweezers; Laser trapping; Symmetry; Optical torque; ORBITAL ANGULAR-MOMENTUM; GEOMETRIC ABSORPTION; INDUCED ROTATION; MICRO-OBJECTS; T-MATRIX; LIGHT; BEAM; SCATTERING; TWEEZERS; DRIVEN;

D O I：

10.1016/j.jqsrt.2009.03.013

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A key element in the generation of optical torque in optical traps, which occurs when electromagnetic angular momentum is transferred from the trapping beam to the trapped particle by scattering, is the symmetries of the scattering particle and the trapping beam. We discuss the effect of such symmetries on the generation and measurement of optical torque in optical tweezers, and some consequent general principles for the design of optically driven micromachines. Crown Copyright (C) 2009 Published by Elsevier Ltd. All rights reserved.

引用

页码：1472 / 1482

页数：11

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