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Metallic nanoparticles in a standing wave: Optical force and heating
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SYSNO ASEP 0397694 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Metallic nanoparticles in a standing wave: Optical force and heating Author(s) Šiler, Martin (UPT-D) RID, ORCID, SAI
Chvátal, Lukáš (UPT-D) RID, ORCID, SAI
Zemánek, Pavel (UPT-D) RID, SAI, ORCIDNumber of authors 3 Source Title Journal of Quantitative Spectroscopy and Radiative Transfer. - : Elsevier - ISSN 0022-4073
Roč. 126, September (2013), s. 84-90Number of pages 7 s. Publication form Print - P Language eng - English Country GB - United Kingdom Keywords Metallic nanoparticles ; Optical trapping ; Heating ; Generalized Lorenz-Mie theory Subject RIV BH - Optics, Masers, Lasers R&D Projects 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) Institutional support UPT-D - RVO:68081731 UT WOS 000322803500013 EID SCOPUS 84880584853 DOI 10.1016/j.jqsrt.2012.10.005 Annotation We have investigated the absorbed power in a single gold or silver metallic nanoparticle together with the optical force acting upon it if the particle is illuminated by two counter-propagating plane waves forming a standing wave. We have used the Generalized Lorenz-Mie theory (GLMT) and considered the incident wavelengths 250 nm <= lambda(vac) <= 1250 nm and particles size parameter 0.1 <= d/lambda(vac) <= 4. Similarly as in the case of dielectric particle we have found that the optical force is equal to zero for all particle positions in the standing wave for certain wavelengths and particle sizes. However, in the case of a metallic object this phenomenon occurs for considerably smaller particles and the conditions change considerably with the illuminating wavelength especially near the localized surface plasmon resonances. Similarly, we have found that the absorbed heat does not change with the position of the particle in the standing wave for certain wavelengths and particle sizes. These sizes generally differ from those giving zero optical force and, therefore, the particle can be trapped at the intensity maximum or minimum and in both cases its heating is maximal or minimal depending on the particle size. Workplace Institute of Scientific Instruments Contact Martina Šillerová, sillerova@ISIBrno.Cz, Tel.: 541 514 178 Year of Publishing 2014
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