The effect of Mie resonances on trapping in optical tweezers | Zendy

Alexander B. Stilgoe | Zendy; Timo A. Nieminen | Zendy; G. Knoener | Zendy; N. R. Heckenberg | Zendy; Halina RubinszteinDunlop | Zendy

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The effect of Mie resonances on trapping in optical tweezers

Author(s) -

Alexander B. Stilgoe,

Timo A. Nieminen,

G. Knoener,

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.

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