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Proceedings Paper

Optical multipole resonances of non-spherical silicon nanoparticles and the influence of illumination direction
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Paper Abstract

In this work we theoretically study spectral multipole resonances of parallelepiped- and pyramid- silicon nanoparticles excited by linearly polarized light waves. We apply the numerical finite element method to calculate the scattering cross-sections as a function of the nanoparticles geometrical parameters. We use the multipole decom- position approach to explore optical resonances in silicon nanoparticles and the influence of second and third order multipoles to scattering diagrams. In contradistinction to our previous investigations, now we explore effects in near-IR spectral range. Apart from basic study we also obtained non-symmetrical combination of multipole contributions due to illumination from top and bottom sides of pyramids. Our work provides important information about the role of high-order multipoles in the light scattering by non-spherical and non-symmetrical nanoparticles. Our results can be applied, for example, for development of metasurfaces and metamaterials in near-IR spectral range.

Paper Details

Date Published: 22 February 2018
PDF: 7 pages
Proc. SPIE 10528, Optical Components and Materials XV, 1052802 (22 February 2018); doi: 10.1117/12.2289894
Show Author Affiliations
Pavel D. Terekhov, Ben-Gurion Univ. of the Negev (Israel)
ITMO Univ. (Russian Federation)
Kseniia V. Baryshnikova, ITMO Univ. (Russian Federation)
Yuriy A. Artemyev, ITMO Univ. (Russian Federation)
Alina Karabchevsky, Ben-Gurion Univ. of the Negev (Israel)
ITMO Univ. (Russian Federation)
Alexander S. Shalin, ITMO Univ. (Russian Federation)
Andrey B. Evlyukhin, ITMO Univ. (Russian Federation)
Laser Zentrum Hannover e.V. (Germany)

Published in SPIE Proceedings Vol. 10528:
Optical Components and Materials XV
Shibin Jiang; Michel J. F. Digonnet, Editor(s)

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