Observation of resonant states in negative refractive photonic crystals

Authors :: Ivo Rendina
Silvia Romano
E. De Tommasi
A. De Luca
Stefano Cabrini
Vito Mocella
Source :: Journal of the European Optical Society. Rapid publications 9 (2014). doi:10.2971/jeos.2014.14006, info:cnr-pdr/source/autori:Romano S.; De Luca A.C.; De Tommasi E.; Cabrini S.; Rendina I.; Mocella V./titolo:Observation of resonant states in negative refractive photonic crystals/doi:10.2971%2Fjeos.2014.14006/rivista:Journal of the European Optical Society. Rapid publications/anno:2014/pagina_da:/pagina_a:/intervallo_pagine:/volume:9
Publication Year :: 2014
Publisher :: European Optical Society, 2014.
Abstract: In this paper, experimental evidences about the resonance phenomena in a negative 2D photonic crystal are shown. Localized plasmon-like modes and guided mode resonances are detected in the reflectivity spectrum of a photonic crystal slab irradiated with out-of-plane incident radiation. The strong confinement of the radiation, in addition to the field enhancement, make photonic crystals a very appealing alternative to plasmonic substrates, avoiding the limits of absorption losses in metals. © The Authors. All rights reserved.