Universal switching of plasmonic signals using optical resonator modes

作     者：Cillian PT McPolin Nicolas Olivier Jean-Sebastien Bouillard Daniel O’Connor Alexey V Krasavin Wayne Dickson Gregory A Wurtz Anatoly V Zayats 

作者机构：Department of PhysicsKing’s College LondonStrandLondon WC2R 2LSUK Present address:University of SheffieldHounsfield RoadSheffield S37RHUK Present address:University of HullCottingham RoadHull HU67RXUK Present address:National Physical LaboratoryHampton RoadTeddingtonMiddlesex TW110LWUK University of North Florida1 UNF DriveJacksonvilleFL 32224USA 

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：135-142页

核心收录：

学科分类：080901[工学-物理电子学] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 080401[工学-精密仪器及机械] 0804[工学-仪器科学与技术] 0803[工学-光学工程] 

基　　金：supported,in part,by EPSRC(UK) support from the Royal Society and the Wolfson Foundation support from the EC FP7 project 304179(Marie Curie Actions) 

主　　题：Fano resonances optical signal processing plasmonics ultrafast switching 

摘      要：We propose and investigate,both experimentally and theoretically,a novel mechanism for switching and modulating plasmonic signals based on a Fano interference process,which arises from the coupling between a narrow-band optical Fabry–Pérot cavity and a surface plasmon polariton(SPP)*** SPP wave emitted from the cavity is actively modulated in the vicinity of the cavity resonances by altering the cavity Q-factor and/or resonant *** experimentally demonstrate dynamic SPP modulation both by mechanical control of the cavity length and all-optically by harnessing the ultrafast nonlinearity of the Au mirrors that form the *** electro-optical modulation scheme is also proposed and numerically *** operation of the switch via mechanical means yields a modulation in the SPP coupling efficiency of~80%,while the all-optical control provides an ultrafast modulation with an efficiency of 30%at a rate of~0.6 *** experimental observations are supported by both analytical and numerical calculations of the mechanical,all-optical and electro-optical modulation methods.