Particles collective effects in counter-propagating Bessel beams

0335076 - ÚPT 2010 RIV US eng C - Konferenční příspěvek (zahraniční konf.)
Zemánek, Pavel - Brzobohatý, Oto - Karásek, Vítězslav - Trojek, Jan
Particles collective effects in counter-propagating Bessel beams.
Optical Trapping and Optical Micromanipulation VI. (Proceedings of SPIE Vol. 7400). Bellingham: SPIE, 2009, 74001K: 1-10. ISBN 978-0-8194-7690-6. ISSN 0277-786X.
[Optical Trapping and Optical Micromanipulation /6./. San Diego (US), 02.08.2009-06.08.2009]
Grant CEP: GA MŠMT(CZ) LC06007; GA ČR GA202/09/0348
Výzkumný záměr: CEZ:AV0Z20650511
Klíčová slova: optical binding * optical forces * optical tweezers * optical trapping * Bessel beams
Kód oboru RIV: BH - Optika, masery a lasery

We present both theoretical and experimental study of longitudinal optical binding between two nanopatricles or microparticles placed in two counter-propagating Bessel beams. We consider coherent linearly polarized beams and we rotate polarization of one beam so that both beams interfere or do not interfere. We present an experimental demonstration of the remarkable changes in the behaviour of both spheres leading to freezing of the structure if both beams interfere.
Trvalý link: http://hdl.handle.net/11104/0179649