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Proceedings Paper

How to use laser radiative and evanescent interference fields to control movement of the sub-micron objects
Author(s): Pavel Zemánek; Tomáš Čižmár; Martin Šiler; Veneranda G. Garcés-Chávez; Kishan Dholakia; Věra Kollárová; Zdeněk Bouchal
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Paper Abstract

We present how to use the transfer of the momentum from the spatially periodic interference field to submicrometer-sized particles. The interference field is obtained by interference of co-propagating nondiffracting beams and counter-propagating nondi.racting and even evanescent fields. These types of trapping fields enable spatial organization of submicrometer-sized objects into one-dimensional arrays containing even thousands of objects, their controlled delivery over a distance of 1 mm, their sorting according to the size of refractive index. Moreover, the particle tracking enables to study the Brownian dynamics, jumps between neighboring optical traps and interactions between the objects. We present a group of new experiments studying particle behavior in such fields.

Paper Details

Date Published: 11 April 2007
PDF: 14 pages
Proc. SPIE 6609, 15th Czech-Polish-Slovak Conference on Wave and Quantum Aspects of Contemporary Optics, 660902 (11 April 2007); doi: 10.1117/12.739338
Show Author Affiliations
Pavel Zemánek, Institute of Scientific Instruments (Czech Republic)
Tomáš Čižmár, Institute of Scientific Instruments (Czech Republic)
Martin Šiler, Institute of Scientific Instruments (Czech Republic)
Veneranda G. Garcés-Chávez, Univ. of St. Andrews (United Kingdom)
Kishan Dholakia, Univ. of St. Andrews (United Kingdom)
Věra Kollárová, Palacky Univ. (Czech Republic)
Zdeněk Bouchal, Palacky Univ. (Czech Republic)


Published in SPIE Proceedings Vol. 6609:
15th Czech-Polish-Slovak Conference on Wave and Quantum Aspects of Contemporary Optics

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