Optical binding of unlike particles

0388100 - ÚPT 2013 RIV US eng C - Conference Paper (international conference)
Karásek, Vítězslav - Zemánek, Pavel
Optical binding of unlike particles.
CPS 2012. 18th Czech-Polish-Slovak Optical Conference on Wave and Quantum Aspects of Contemporary Optics (Proceedings of SPIE Vol.8697). Bellingham: SPIE, 2012, 86970T: 1-6. ISBN 978-0-8194-9481-8.
[CPS 2012. Czech-Polish-Slovak Optical Conference on Wave and Quantum Aspects of Contemporary Optics /18./. Ostravice (CZ), 03.09.2012-07.09.2012]
R&D Projects: GA ČR GPP205/12/P868
Institutional support: RVO:68081731
Keywords : Optical binding * Optical tweezers * self-arrangement * colloids
Subject RIV: BH - Optics, Masers, Lasers

The self-arrangement of several micron-sized particles (due to their mutual scattering of light fields) is called optical binding. The scattered light is induced by incident laser fields which may be also used for partial localization (similarly to optical tweezers) of the particles in the water solution. We have previously experimentally studied the optical binding in the configurations employing two counter-propagation Bessel beams and these results were sufficiently supported by our numerical simulations (Coupled dipole method { CDM). Here we present numerical studies of configurations where some symmetries of the problem are broken. We study how the difference of sizes of two spherical particles influences their spatial stable separation. These results may serve for detection of particles of different composition, size or shape.
Permanent Link: http://hdl.handle.net/11104/0217008