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Optimization of axial optical force acting on an array ot overlapping spheres
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SYSNO ASEP 0319140 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Optimization of axial optical force acting on an array ot overlapping spheres Title Optimalizace axiální optické síly působící na pole překrývajících se sfér Author(s) Trojek, Jan (UPT-D)
Karásek, Vítězslav (UPT-D) RID, SAI
Zemánek, Pavel (UPT-D) RID, SAI, ORCIDSource Title 16th Polish-Slovak-Czech Optical Conference on Wave and Quantum Aspects of Contemporary Optics. (Proceedings of SPIE Vol. 7141). - Bellingham : SPIE, 2008 - ISSN 0277-786X - ISBN 978-0-8194-7383-7 Pages 714114: 1-9 Number of pages 9 s. Action Polish-Slovak-Czech Optical Conference on Wave and Quantum Aspects of Contemporary Optics /16./ Event date 08.09.2008-12.09.2008 VEvent location Polanica Zdrój Country PL - Poland Event type WRD Language eng - English Country US - United States Keywords optical force ; overlapping spheres ; analytical calculations ; numerical computations 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) Annotation Optical forces are generally calculated only on spherical dielectric objects placed into a laser beam. It has been already demonstrated that a standing wave offers several useful advantages comparing to a single beam trapping. Firstly it can confine objects with higher refractive index and secondly it provides higher optical forces acting on spheres of certain sizes. Therefore we focus here on the problem how to modify the object shape so that the axial optical force is enlarged even more. We consider an object composed of overlapping spheres in linear chain and look for maximal optical force. We demonstrate that by suitable changing such object geometry the final optical force can exceed by an order of magnitude in comparison to the optical force acting on a single sphere. Workplace Institute of Scientific Instruments Contact Martina Šillerová, sillerova@ISIBrno.Cz, Tel.: 541 514 178 Year of Publishing 2009
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