Clarification of surface modes of a periodic nanopatch metasurface

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Affiliation of Author(s):Duke University

Journal:Optics Express

Abstract:We study the angle-dependent optical reflectance spectrum of a metasurface consisting of a periodic array of film-coupled plasmonic nanopatch particles. The nanopatch metasurface exhibits a strong, angle-independent absorption resonance at a wavelength defined by the nanopatch geometry and relative density. When the nanopatches are arranged in a regular lattice, a second, sharp absorption dip is present that varies strongly as a function of the incidence angle. This second resonance is a collective effect involving the excitation of surface plasmon modes and relates to a Wood’s anomaly.

All the Authors:David R. Smith,Christopher Bingham,Xiaojun Liu,Zhiqin Huang,Patrick Bowen

First Author:Xiaomeng Jia

Indexed by:Journal paper

Document Code:26.003004

Translation or Not:no

Included Journals:SCI

Publication links:https://www.osapublishing.org/oe/viewmedia.cfm?uri=oe-26-3-3004&html=true