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Proceedings Paper

Substrate influence on infrared absorption by clusters of small spheres
Author(s): Victor V. Gozhenko; Leonid G. Grechko; N. G. Shkoda; Keith W. Whites
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Paper Abstract

In this work we study the effects of a semi-infinite substrate on the electromagnetic properties of a cluster of small spheres in the electrostatic approximation. General expressions for coefficients of the multipole expansion of the electrostatic potential of a sphere accounting for interaction between ambient particles and the substrate are obtained. Expressions for the polarizability tensor and resonant frequencies of a single sphere above a substrate are derived for the case of Lorentzian permittivities of both the sphere and substrate. Optical properties of small spheres are shown to be anisotropic due to the substrate influence.

Paper Details

Date Published: 14 April 2003
PDF: 5 pages
Proc. SPIE 5065, Sixth International Conference on Material Science and Material Properties for Infrared Optoelectronics, (14 April 2003); doi: 10.1117/12.502182
Show Author Affiliations
Victor V. Gozhenko, Institute of Surface Chemistry (Ukraine)
Leonid G. Grechko, Institute of Surface Chemistry (Ukraine)
N. G. Shkoda, Institute of Surface Chemistry (Ukraine)
Keith W. Whites, South Dakota School of Mines and Technology (United States)


Published in SPIE Proceedings Vol. 5065:
Sixth International Conference on Material Science and Material Properties for Infrared Optoelectronics
Fiodor F. Sizov; Johanna V. Gumenjuk-Sichevska; Sergey A. Kostyukevych, Editor(s)

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