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Proceedings Paper

Optical conveyor belt based on Bessel beams
Author(s): Tomas Cizmar; Veneranda Garcez-Chavez; Kishan Dholakia; Pavel Zemanek
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Paper Abstract

In this paper we present the standing wave created from two counter-propagating non-diffracting (Bessel) beams as a device for confinement and precise delivery of sub-micron sized particles. The particle position in direction of beam propagation is controled by changing the phase shift between these two beams. We succeeded in delivery of polystyrene particles of diameter 410 nm over a distance of 300 μm. At the same time we experimentaly confirmed the theoretical prediction how the optical forces acting on particles in this kind of field depend on the size of the objects .

Paper Details

Date Published: 19 August 2005
PDF: 7 pages
Proc. SPIE 5930, Optical Trapping and Optical Micromanipulation II, 59300X (19 August 2005); doi: 10.1117/12.615728
Show Author Affiliations
Tomas Cizmar, Institute of Scientific Instruments (Czech Republic)
Veneranda Garcez-Chavez, Univ. of St. Andrews (United Kingdom)
Kishan Dholakia, Univ. of St. Andrews (United Kingdom)
Pavel Zemanek, Institute of Scientific Instruments (Czech Republic)


Published in SPIE Proceedings Vol. 5930:
Optical Trapping and Optical Micromanipulation II
Kishan Dholakia; Gabriel C. Spalding, Editor(s)

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