Optical binding of unlike particles

Vítězslav Karásek; Pavel Zemánek

doi:10.1117/12.2009226

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18 December 2012 Optical binding of unlike particles

Vítězslav Karásek, Pavel Zemánek

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Proceedings Volume 8697, 18th Czech-Polish-Slovak Optical Conference on Wave and Quantum Aspects of Contemporary Optics; 86970T (2012) https://doi.org/10.1117/12.2009226
Event: 18th Czech-Polish-Slovak Optical Conference on Wave and Quantum Aspects of Contemporary Optics, 2012, Ostravice, Czech Republic

Abstract

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.

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Vítězslav Karásek and Pavel Zemánek "Optical binding of unlike particles", Proc. SPIE 8697, 18th Czech-Polish-Slovak Optical Conference on Wave and Quantum Aspects of Contemporary Optics, 86970T (18 December 2012); https://doi.org/10.1117/12.2009226

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