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Optical trapping of non-spherical plasmonic nanoparticles
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SYSNO ASEP 0434440 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Optical trapping of non-spherical plasmonic nanoparticles Author(s) Brzobohatý, Oto (UPT-D) RID, ORCID, SAI
Šiler, Martin (UPT-D) RID, ORCID, SAI
Chvátal, Lukáš (UPT-D) RID, ORCID, SAI
Karásek, Vítězslav (UPT-D) RID, SAI
Zemánek, Pavel (UPT-D) RID, SAI, ORCIDNumber of authors 5 Source Title Complex Light and Optical Forces VIII. (Proceedings of SPIE 8999). - Bellingham : SPIE, 2014 - ISSN 0277-786X - ISBN 9780819499127 Pages 0899909:1-8 Number of pages 8 s. Publication form Print - P Action Complex Light and Optical Forces /8./ Event date 04.02.2014-06.02.2014 VEvent location San Francisco Country US - United States Event type WRD Language eng - English Country US - United States Keywords plasmonic nano-particles ; optical tweezers ; non-spherical particles Subject RIV BH - Optics, Masers, Lasers R&D Projects GPP205/11/P294 GA ČR - Czech Science Foundation (CSF) GPP205/12/P868 GA ČR - Czech Science Foundation (CSF) LH12018 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) ED0017/01/01 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) LO1212 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Institutional support UPT-D - RVO:68081731 UT WOS 000338075400003 EID SCOPUS 84901642254 DOI 10.1117/12.2041199 Annotation Laser manipulation with plasmonic nano-particles is a rapidly growing field with various practical applications stretching beyond physics towards biology and chemistry. For example gold nano-particles can be employed as local heat source, probes for surface enhanced Raman spectroscopy with a sensitivity going down to a single molecule or contact-less probe in scanning near-field optical microscope. A single tightly focused laser beam optical tweezers was also employed to three-dimensional trapping of gold and silver nano-particles with diameters between 20 to 250 nm. However, theoretical models assuming the spherical shape of a nano-particle predict spatial confinement only for particles with diameter lower than 100 nm. Our results indicate this discrepancy is caused by ignoring particles shape which is very important for understanding of light-matter interaction. Workplace Institute of Scientific Instruments Contact Martina Šillerová, sillerova@ISIBrno.Cz, Tel.: 541 514 178 Year of Publishing 2015
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