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Proceedings Paper

Circular dichroism from Fano resonances in planar chiral oligomers
Author(s): Ben Hopkins; Alexander N. Poddubny; Andrey E. Miroshnichenko; Yuri S. Kivshar
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Paper Abstract

Here we present a general approach for describing the physics of Fano resonances in nanoparticle oligomers. It is shown that the interference of nonorthogonal collective eigenmodes is a sufficient condition to produce Fano resonances. We then show that such nonorthogonality between eigenmodes also permits the existence of a new form circular dichroism in the absorption and scattering cross-sections, even when circular dichroism is forbidden in the extinction cross-section.

Paper Details

Date Published: 5 May 2015
PDF: 5 pages
Proc. SPIE 9502, Metamaterials X, 95020Q (5 May 2015); doi: 10.1117/12.2183280
Show Author Affiliations
Ben Hopkins, The Australian National Univ. (Australia)
Alexander N. Poddubny, Ioffe Physical-Technical Institute (Russian Federation)
National Research Univ. of Information Technologies, Mechanics and Optics (Russian Federation)
Andrey E. Miroshnichenko, The Australian National Univ. (Australia)
Yuri S. Kivshar, Australian National Univ. (Australia)
National Research Univ. for Information Technology, Mechanics and Optics (Russian Federation)

Published in SPIE Proceedings Vol. 9502:
Metamaterials X
Vladimír Kuzmiak; Peter Markos; Tomasz Szoplik, Editor(s)

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