Spontaneous emission in non-local materials

作     者：Pavel Ginzburg Diane J Roth Mazhar E Nasir Paulina Segovia Alexey V Krasavin James Levitt Liisa M Hirvonen Brian Wells Klaus Suhling David Richards Viktor A Podolskiy Anatoly V Zayats 

作者机构：Department of PhysicsKing’s College LondonStrandLondon WC2R 2LSUK Present address:School of Electrical EngineeringTel Aviv UniversityTel Aviv 69978Israel Department of Physics and Applied PhysicsUniversity of Massachusetts LowellOne University AveLowellMA 01854USA Present address:Department of PhysicsUniversity of HartfordWest HartfordCT 06117USA 

出 版 物：《Light(Science & Applications)》 (光（科学与应用)（英文版）)

年 卷 期：2016年第5卷第1期

页      面：1-10页

核心收录：

学科分类：07[理学] 070201[理学-理论物理] 0702[理学-物理学] 

基　　金：ESPRC(UK) the ERC iPLASMM project(321268) the US Army Research Office(Grant No.W911NF-12-1-0533) support from the Royal Society and the Wolfson Foundation TAU Rector Grant and German-Israeli Foundation(GIF,grant number 2399) 

主　　题：composite electromagnetic materials non-local optical properties plasmonic metamaterials quantum electrodynamics spontaneous emission 

摘      要：Light–matter interactions can be strongly modified by the surrounding ***,we report on the first experimental observation of molecular spontaneous emission inside a highly non-local metamaterial based on a plasmonic nanorod *** show that the emission process is dominated not only by the topology of its local effective medium dispersion,but also by the non-local response of the composite,so that metamaterials with different geometric parameters but the same local effective medium properties exhibit different Purcell factors.A record-high enhancement of a decay rate is observed,in agreement with the developed quantitative description of the Purcell effect in a non-local *** engineered material non-locality introduces an additional degree of freedom into quantum electrodynamics,enabling new applications in quantum information processing,photochemistry,imaging and sensing with macroscopic composites.