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Proceedings Paper

Rotational behavior of oblate golden nanoparticles in circularly polarized dual beam optical trap
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Paper Abstract

Larger golden nanoparticles grow into several preferred forms. Some of those may be easily approximated by ellipsoids. In this paper we examine the rotational dynamics of spheroidal particles in an optical trap comprising counter-propagating Gaussian beams of opposing helicity. Isolated spheroids undergo continuous rotation with frequencies determined by their size and aspect ratio. We study the rotational frequencies and stability of these golden nano-particles theoretically by the means of T-Matrix.

Paper Details

Date Published: 25 August 2015
PDF: 6 pages
Proc. SPIE 9548, Optical Trapping and Optical Micromanipulation XII, 95481E (25 August 2015); doi: 10.1117/12.2188159
Show Author Affiliations
Martin Šiler, Institute of Scientific Instruments of the ASCR, v.v.i. (Czech Republic)
Lukáš Chvátal, Institute of Scientific Instruments of the ASCR, v.v.i. (Czech Republic)
Oto Brzobohatý, Institute of Scientific Instruments of the ASCR, v.v.i. (Czech Republic)
Alejandro V. Arzola, Univ. Nacional Autónoma de México (Mexico)
Petr Jákl, Institute of Scientific Instruments of the ASCR, v.v.i. (Czech Republic)
Stephen H. Simpson, Institute of Scientific Instruments of the ASCR, v.v.i. (Czech Republic)
Pavel Zemánek, Institute of Scientific Instruments of the ASCR, v.v.i. (Czech Republic)


Published in SPIE Proceedings Vol. 9548:
Optical Trapping and Optical Micromanipulation XII
Kishan Dholakia; Gabriel C. Spalding, Editor(s)

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