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Longitudinal optical binding of several spherical particles studied by the coupled dipole method
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SYSNO ASEP 0333770 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Longitudinal optical binding of several spherical particles studied by the coupled dipole method Author(s) Karásek, Vítězslav (UPT-D) RID, SAI
Brzobohatý, Oto (UPT-D) RID, ORCID, SAI
Zemánek, Pavel (UPT-D) RID, SAI, ORCIDNumber of authors 3 Source Title Journal of Optics A-Pure and Applied Optics - ISSN 1464-4258
Roč. 11, č. 3 (2009), 034009:1-9Number of pages 9 s. Language eng - English Country GB - United Kingdom Keywords optical binding ; optical tweezers ; optical self-arrangement ; coupled dipole method ; optical forces Subject RIV BH - Optics, Masers, Lasers R&D Projects LC06007 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) OC08034 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) CEZ AV0Z20650511 - UPT-D (2005-2011) UT WOS 000262787800010 DOI 10.1088/1464-4258/11/3/034009 Annotation We employed a coupled dipole method (CDM) to study theoretically the interaction among several spherical particles placed into two counter-propagating mutually incoherent Bessel beams. It has already been demonstrated that, if the intensity of the incident beam is sufficiently high, the scattered light is strong enough to self-arrange the objects in the space. Namely, the counter-propagating and incoherent Bessel beams are extremely useful to be employed because the interaction among the particles via the scattered light is not superimposed by other optical forces coming from the radiation pressure of each beam and axial gradients of the beam intensities. Therefore so-called optical binding between the particles is enhanced and leads to several stable configurations of the particles. We studied these stable configurations using the CDM for various properties of the beams and particles and we also compared these theoretical results with the experimental observations. Workplace Institute of Scientific Instruments Contact Martina Šillerová, sillerova@ISIBrno.Cz, Tel.: 541 514 178 Year of Publishing 2010
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