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Proceedings Paper

Manipulation of metal-dielectric core-shell particles in optical fields
Author(s): Lukáš Chvátal; Martin Šiler; Pavel Zemánek
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Paper Abstract

Metal-dielectric core-shell particles represent promising tools in nanoplasmonics. In combination with optical tweezers they can be manipulated in a contactless way through fluid and their plasmonic properties can be used to probe or modify the local environment. We perform a numerical parametric study to find the particle geometry and material parameters under which such particle can be stably confined in optical tweezers. We use the theory based on Mie scattering in the focal field of an ideal water immersion objective of numerical aperture NA=1.2. For very thin metal layers we find that strong trapping on the optical axis can be achieved.

Paper Details

Date Published: 5 December 2014
PDF: 6 pages
Proc. SPIE 9441, 19th Polish-Slovak-Czech Optical Conference on Wave and Quantum Aspects of Contemporary Optics, 944106 (5 December 2014); doi: 10.1117/12.2176063
Show Author Affiliations
Lukáš Chvátal, Institute of Scientific Instruments, ASCR (Czech Republic)
Martin Šiler, Institute of Scientific Instruments, ASCR (Czech Republic)
Pavel Zemánek, Institute of Scientific Instruments, ASCR (Czech Republic)


Published in SPIE Proceedings Vol. 9441:
19th Polish-Slovak-Czech Optical Conference on Wave and Quantum Aspects of Contemporary Optics
Agnieszka Popiolek-Masajada; Waclaw Urbanczyk, Editor(s)

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