Formation of one-dimensional optically bound structures of polystyrene particles near the surface

0352213 - ÚPT 2011 RIV US eng C - Conference Paper (international conference)
Brzobohatý, Oto - Karásek, Vítězslav - Zemánek, Pavel - Čižmár, T. - Dholakia, K.
Formation of one-dimensional optically bound structures of polystyrene particles near the surface.
Optical Trapping and Optical Micromanipulation VII (Proceedings of SPIE Vol. 7762). Bellingham: SPIE, 2010, 776212: 1-7. ISBN 978-0-8194-8258-7.
[Optical Trapping and Optical Micromanipulation /7./. San Diego (US), 01.08.2010]
R&D Projects: GA ČR GA202/09/0348; GA MŠMT(CZ) LC06007; GA MŠMT OC08034
Institutional research plan: CEZ:AV0Z20650511
Keywords : optical binding * optical forces * optical tweezers * optical trapping
Subject RIV: BH - Optics, Masers, Lasers

We studied experimentally and theoretically the formation of one-dimensional optically bound structures of polystyrene particles placed near the surface. These structures were created as the result of the illumination of a colloidal suspension by relatively wide Gaussian beam (beam waist 20 .mu.m and wavelength 532 nm) that was reflected backwards with a tiny tilt with respect to the incident beam. We have measured quantitatively the binding forces between individual particles and compared the experimental results with the theoretical simulations based on the coupled dipole method (CDM).
Permanent Link: http://hdl.handle.net/11104/0191778