The effect of Mie resonances on trapping in optical tweezers

被引：75

作者：

Stilgoe, Alexander B. ^{[1
]}

Nieminen, Timo A. ^{[1
]}

Knoener, Gregor ^{[1
]}

Heckenberg, Norman R. ^{[1
]}

Rubinsztein-Dunlop, Halina ^{[1
]}

机构：

[1] Univ Queensland, Sch Phys Sci, Ctr Biophoton & Laser Sci, Brisbane, Qld 4072, Australia

来源：

OPTICS EXPRESS | 2008年 / 16卷 / 19期

关键词：

D O I：

10.1364/OE.16.015039

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We calculate trapping forces, trap stiffness and interference effects for spherical particles in optical tweezers using electromagnetic theory. We show the dependence of these on relative refractive index and particle size. We investigate resonance effects, especially in high refractive index particles where interference effects are expected to be strongest. We also show how these simulations can be used to assist in the optimal design of traps. (C) 2008 Optical Society of America.

引用

页码：15039 / 15051

页数：13

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