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Design of tunable cylindrical dielectric nanoantenna
Author(s): Inder Devi; Reena .; Yogita Kalra; R. K. Sinha
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Paper Abstract

A tunable cylindrical all dielectric optical nanoantenna has been proposed. A silicon nanocylinder of radius 60 nm and height 150 nm has been considered. The azimuthally symmetric, complete forward scattering at first Kerker’s condition and backward scattering with minimum forward scattering at second generalized Kerker’s condition in near infra-red region has been observed for the proposed design which makes silicon nanocylinder a promising candidate for optical nanoantenna applications. The effect of the dimensions of the dielectric nanocylinder on the scattering properties of the cylindrical nanoantenna has been analyzed using finite element method. We have analyzed that the variation in diameter of nanocylinder has great influence on the strength of interference of electric and magnetic dipolar resonances. Further, we have observed tuning ability of the cylindrical nanoantenna with respect to the variation in its radius.

Paper Details

Date Published: 16 September 2016
PDF: 8 pages
Proc. SPIE 9919, Nanophotonic Materials XIII, 991903 (16 September 2016); doi: 10.1117/12.2237849
Show Author Affiliations
Inder Devi, Delhi Technological Univ. (India)
Reena ., Delhi Technological Univ. (India)
Yogita Kalra, Delhi Technological Univ. (India)
R. K. Sinha, Delhi Technological Univ. (India)
Central Scientific Instruments Organization (India)


Published in SPIE Proceedings Vol. 9919:
Nanophotonic Materials XIII
Stefano Cabrini; Gilles Lérondel; Adam M. Schwartzberg; Taleb Mokari, Editor(s)

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Design of tunable cylindrical dielectric nanoantenna



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