Optical binding of particle pairs in retro-reflected beam geometry

0468525 - ÚPT 2017 RIV US eng C - Conference Paper (international conference)
Damková, Jana - Chvátal, Lukáš - Brzobohatý, Oto - Zemánek, Pavel
Optical binding of particle pairs in retro-reflected beam geometry.
20th Slovak-Czech-Polish Optical Conference on Wave and Quantum Aspects of Contemporary Optics (Proceedings of SPIE 10142). Bellingham: SPIE, 2016, s. 1-7, č. článku 101420Q. ISSN 0277-786X.
[Slovak-Czech-Polish Optical Conference on Wave and Quantum Aspects of Contemporary Optics /20./. Jasná (SK), 05.09.2016-09.09.2016]
R&D Projects: GA ČR(CZ) GA14-16195S; GA MŠMT(CZ) LO1212; GA TA ČR TE01020233; GA MŠMT ED0017/01/01
Institutional support: RVO:68081731
Keywords : optical trapping * tractor beam * optical binding * holographic video microscopy
Subject RIV: BH - Optics, Masers, Lasers
http://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=2595362

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.
Permanent Link: http://hdl.handle.net/11104/0266487