Direct dark mode excitation by symmetry matching of a single-particle based metasurface

Autor:	Burokur, Shah Nawaz, Lupu, Anatole, de Lustrac, André
Rok vydání:	2014
Předmět:	Condensed Matter - Mesoscale and Nanoscale Physics Condensed Matter - Materials Science Physics - Optics
Zdroj:	Phys. Rev. B 91, 035104 (2015)
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevB.91.035104
Popis:	This paper makes evidence for direct dark mode excitation mechanism in a metasurface structure. The dark mode excitation mechanism is entirely determined by structures' symmetry and does not depend on near-field coupling between elements. In our examples, we consider single element based metasurface composed of two V antennas connected in an anti-symmetric arrangement. Both experimental and modeling results show an efficient excitation of magnetic dipolar mode in such structures. The direct dark mode excitation mechanism provides a design that is more robust with respect to technology imperfections. The considered approach opens promising perspectives for new type of nanostructure designs and greatly relaxes fabrication constraints for the optical domain. Comment: 21 pages, 5 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1406.6378 Zobrazit plný text záznamu View this record from Arxiv