Optical binding of particle pairs in retro-reflected beam geometry

Jana Damková; Lukáš Chvátal; Oto Brzobohatý; Pavel Zemánek

doi:10.1117/12.2263360

23 December 2016 Optical binding of particle pairs in retro-reflected beam geometry

Jana Damková, Lukáš Chvátal, Oto Brzobohatý, Pavel Zemánek

Proceedings Volume 10142, 20th Slovak-Czech-Polish Optical Conference on Wave and Quantum Aspects of Contemporary Optics; 101420Q (2016) https://doi.org/10.1117/12.2263360
Event: 20th Slovak-Czech-Polish Optical Conference on Wave and Quantum Aspects of Contemporary Optics, 2016, Jasna, Slovakia

Abstract

Optical binding of polystyrene microparticle pairs in retro-reflected wide Gaussian beam, called "tractor beam", is studied experimentally and the results are compared with the numerical calculations based on the multiple-particle Mie scattering theory. To investigate the dynamics of optically bound particle pairs in three dimensions we employ holographic video microscopy technique. We show that the particle pair motion is strongly dependent on the relative distances of the particles and the switching between applying pushing and pulling force on particle pairs can be achieved only by changing their configuration even though the "tractor-beam" parameters remain unchanged.

Citation Download Citation

Jana Damková, Lukáš Chvátal, Oto Brzobohatý, and Pavel Zemánek "Optical binding of particle pairs in retro-reflected beam geometry", Proc. SPIE 10142, 20th Slovak-Czech-Polish Optical Conference on Wave and Quantum Aspects of Contemporary Optics, 101420Q (23 December 2016); https://doi.org/10.1117/12.2263360

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