Manipulation of metal-dielectric core-shell particles in optical fields

Lukáš Chvátal; Martin Šiler; Pavel Zemánek

doi:10.1117/12.2176063

5 December 2014 Manipulation of metal-dielectric core-shell particles in optical fields

Lukáš Chvátal, Martin Šiler, Pavel Zemánek

Proceedings Volume 9441, 19th Polish-Slovak-Czech Optical Conference on Wave and Quantum Aspects of Contemporary Optics; 944106 (2014) https://doi.org/10.1117/12.2176063
Event: XIX Polish-Slovak-Czech Optical Conference on Wave and Quantum Aspects of Contemporary Optics, 2014, Jelenia Gora, Poland

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.

Citation Download Citation

Lukáš Chvátal, Martin Šiler, and Pavel Zemánek "Manipulation of metal-dielectric core-shell particles in optical fields", Proc. SPIE 9441, 19th Polish-Slovak-Czech Optical Conference on Wave and Quantum Aspects of Contemporary Optics, 944106 (5 December 2014); https://doi.org/10.1117/12.2176063

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