Hybrid photonic-plasmonic cavities based on the nanoparticle-on-a-mirror configuration

作     者：ANGELA I.BARREDA MARIO ZAPATA-HERRERA ISABELLE M.PALSTRA LAURA MERCADÉ JAVIER AIZPURUA A.FEMIUS KOENDERINK ALEJANDRO MARTÍNEZ 

作者机构：Institute of Solid State PhysicsFriedrich Schiller University Jena07743 JenaGermany Institute of Applied PhysicsAbbe Center of PhotonicsFriedrich Schiller University Jena07745 JenaGermany Nanophotonics Technology CenterUniversitat Politècnica de ValènciaCamino de Vera s/n46022 ValenciaSpain Materials Physics Center CSIC-UPV/EHU20018 Donostia-San SebastianSpain Donostia International Physics Center DIPC20018 Donostia-San SebastianSpain Center for NanophotonicsAMOLF1098 XG AmsterdamThe Netherlands Van der Waals-Zeeman InstituteInstitute of PhysicsUniversity of Amsterdam1090 GL AmsterdamThe Netherlands 

出 版 物：《Photonics Research》 (光子学研究（英文版）)

年 卷 期：2021年第9卷第12期

页      面：2398-2419页

核心收录：

学科分类：07[理学] 0804[工学-仪器科学与技术] 0805[工学-材料科学与工程（可授工学、理学学位）] 070204[理学-等离子体物理] 0702[理学-物理学] 

基　　金：Horizon 2020 Framework Programme(829067THOR) Generalitat Valenciana(PPC/2018/002,PROMETEO/2019/123) Ministerio de Ciencia,Innovacióny Universidades(PGC2018-094490-B,PRX18/00126) Alexander von Humboldt-Stiftung 

主　　题：mirror cavity nanoparticle 

摘      要：Hybrid photonic-plasmonic cavities have emerged as a new platform to increase light-matter interaction capable to enhance the Purcell factor in a singular way not attainable with either photonic or plasmonic cavities *** the hybrid cavities proposed so far,the plasmonic element is usually a metallic bow-tie antenna,so the plasmonic gap—defined by lithography-is limited to minimum values of several ***-on-a-mirror(NPoM)cavities are far superior to achieve the smallest possible mode volumes,as plasmonic gaps smaller than 1 nm can be ***,we design a hybrid cavity that combines an NPoM plasmonic cavity and a dielectric-nanobeam photonic crystal cavity operating at transverse-magnetic *** metallic nanoparticle can be placed very close(1 nm)to the upper surface of the dielectric cavity,which acts as a low-reflectivity *** demonstrate through numerical calculations of the local density of states that this hybrid plasmonic-photonic cavity exhibits quality factors𝑄above 10^(3) and normalized mode volumes𝑉down to 10^(−3),thus resulting in high Purcell factors(F_(P)≈10^(5)),while being experimentally feasible with current *** results suggest that hybrid cavities with sub-nanometer gaps should open new avenues for boosting light-matter interaction in nanophotonic systems.