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Proceedings Paper

Algorithm for computing holographic optical tweezers at video rates
Author(s): Mario Montes-Usategui; Encarnación Pleguezuelos; Jordi Andilla; Estela Martín-Badosa; Ignacio Juvells
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Paper Abstract

Digital holography enables the creation of multiple optical traps at arbitrary three-dimensional locations and spatial light modulators permit updating those holograms at video rates. However, the time required for computing the holograms makes interactive optical manipulation of several samples difficult to achieve. We introduce an algorithm for computing holographic optical tweezers that is both easy to implement and capable of speeds in excess of 10 Hz when running on a Pentium IV computer. A discussion of the pros and cons of the algorithm, a mathematical analysis of the efficiency of the resulting traps, as well as results of the three-dimensional manipulation of polystyrene micro spheres are included.

Paper Details

Date Published: 11 September 2006
PDF: 10 pages
Proc. SPIE 6326, Optical Trapping and Optical Micromanipulation III, 63262X (11 September 2006); doi: 10.1117/12.680504
Show Author Affiliations
Mario Montes-Usategui, Univ. de Barcelona (Spain)
Encarnación Pleguezuelos, Univ. de Barcelona (Spain)
Jordi Andilla, Univ. de Barcelona (Spain)
Estela Martín-Badosa, Univ. de Barcelona (Spain)
Ignacio Juvells, Univ. de Barcelona (Spain)

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

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