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Proceedings Paper

Calculation of optical trapping landscapes
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Paper Abstract

Manipulation of micrometer sized particles with optical tweezers can be precisely modeled with electro dynamic theory using Mie's solution for spherical particles or the T-matrix method for more complex objects. We model optical tweezers for a wide range of parameters including size, relative refractive index and objective numerical aperture. We present the resulting landscapes of the trap stiffness and maximum applicable trapping force in the parameter space. These landscapes give a detailed insight into the requirements and possibilities of optical trapping and provide detailed information on trapping of nanometer sized particles or trapping of high index particles like diamond.

Paper Details

Date Published: 30 August 2006
PDF: 9 pages
Proc. SPIE 6326, Optical Trapping and Optical Micromanipulation III, 63260K (30 August 2006); doi: 10.1117/12.680114
Show Author Affiliations
Gregor Knöner, The Univ. of Queensland (Australia)
Timo A. Nieminen, The Univ. of Queensland (Australia)
Simon Parkin, The Univ. of Queensland (Australia)
Norman R. Heckenberg, The Univ. of Queensland (Australia)
Halina Rubinsztein-Dunlop, The Univ. of Queensland (Australia)


Published in SPIE Proceedings Vol. 6326:
Optical Trapping and Optical Micromanipulation III
Kishan Dholakia; Gabriel C. Spalding, Editor(s)

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