Guided resonance in negative index photonic crystals: a new approach  

作　　者：Silvia Romano Stefano Cabrini Ivo Rendina Vito Mocella 

机构地区：[1]CNR-IMM-Unita di Napoli,80131 Napoli,Italy [2]Molecular Foundry,Lawrence Berkeley National Laboratory,Berkeley,CA,USA

出　　处：《Light(Science & Applications)》2014年第1期365-369,共5页光（科学与应用)（英文版）

基　　金：Portions of this work were performed at the Molecular Foundry,Lawrence Berkeley National Laboratory,which is supported by the Office of Science,Office of Basic Energy Sciences,of the US Department of Energy under contract no.DE-AC02-05CH11231;This work was partially supported by the Italian Ministry of University and Research under grants PON PANDION 01_00375.

摘　　要：The behavior of a negative refraction photonic crystal slab irradiated with out-of-plane incident beam is an unexplored subject.In such an experimental configuration,guided mode resonance appears in the reflection spectrum.We show that,in this case,the light coupled inside the photonic crystal is backpropagating.A relationship with the negative index properties is established using a new approach in which the guided resonance is recovered by modeling the photonic crystal layer with a simple Lorentz resonator using the Fresnel reflection formula.

关 键 词：diffraction gratings guided mode resonance negative index photonic crystals 

分 类 号：O43[机械工程—光学工程]