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Proceedings Paper

Optical tweezing using adaptive optics technology
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Paper Abstract

Optical tweezers are a relatively new technique for non-invasive manipulation of micro particles. It has applications in different scientific and technological areas, such as: cell and molecule sorting, nano device assembly, and analysis of bio motors. Standard methods to create optical tweezers rely on using either the manipulation of a single beam or a spatial light modulator. Here a new optical tweezer design is presented that employs concepts from the realm of adaptive optics. The prototype system employs a deformable mirror to control the 3D position of the traps. A specific closed-loop control algorithm, adapted from adaptive optics technology allows a real-time precise monitoring of the deformable mirror shape and provides exquisite accuracy in trap placement. The first results obtained with the prototype design are presented.

Paper Details

Date Published: 29 August 2008
PDF: 10 pages
Proc. SPIE 7038, Optical Trapping and Optical Micromanipulation V, 70381H (29 August 2008); doi: 10.1117/12.795369
Show Author Affiliations
Shaun Bowman, Univ. of Victoria (Canada)
Rodolphe Conan, Univ. of Victoria (Canada)
Colin Bradley, FlexMet Technologies Inc. (Canada)

Published in SPIE Proceedings Vol. 7038:
Optical Trapping and Optical Micromanipulation V
Kishan Dholakia; Gabriel C. Spalding, Editor(s)

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