Open AccessThe effect of Mie resonances on trapping in optical tweezers
Author(s) -
Alexander B. Stilgoe,
Timo A. Nieminen,
Gregor Knöener,
N. R. Heckenberg,
Halina RubinszteinDunlop
Publication year - 2008
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.16.015039
Subject(s) - optical tweezers , refractive index , trapping , optics , mie scattering , interference (communication) , optical force , tweezers , resonance (particle physics) , physics , particle (ecology) , materials science , light scattering , atomic physics , scattering , ecology , channel (broadcasting) , oceanography , electrical engineering , geology , biology , engineering
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.