Strong Exciton-Plasmon Coupling and Hybridization of Organic-Inorganic Exciton-Polaritons in Plasmonic Nanocavity  

作　　者：Ping Jiang Chao Li Yuan-Yuan Chen Gang Song Yi-Lin Wang Li Yu 江平;李超;陈园园;宋钢;王艺霖;于丽(State Key Laboratory of Information Photonics and Optical Communications,Beijing University of Posts and Telecommunications,Beijing 100876;School of Science,Beijing University of Posts and Telecommunications,Beijing 100876;China South Industries Research Academy,Beijing 100089)

机构地区：[1]State Key Laboratory of Information Photonics and Optical Communications,Beijing University of Posts and Telecommunications,Beijing 100876 [2]School of Science,Beijing University of Posts and Telecommunications,Beijing 100876 [3]China South Industries Research Academy,Beijing 100089

出　　处：《Chinese Physics Letters》2019年第10期62-66,共5页中国物理快报（英文版）

基　　金：Supported by the National Key Research and Development Program of China under Grant No 2016YFA0301300;the National Natural Science Foundation of China under Grant Nos 11574035 and 11374041;the State Key Laboratory of Information Photonics and Optical Communications

摘　　要：We investigate strong exciton-plasmon coupling and plasmon-mediated hybridization between the Frenkel(F)and Wannier–Mott(WM)excitons of an organic-inorganic hybrid system consisting of a silver ring separated from a monolayer WS2 by J-aggregates.The extinction spectra of the hybrid system calculated by employing the coupled oscillator model are consistent with the results simulated by the finite-difference time-domain method.The calculation results show that strong couplings among F excitons,WM excitons,and localized surface plasmon resonances(LSPRs)lead to the appearance of three plexciton branches in the extinction spectra.The weighting efficiencies of the F exciton,WM exciton and LSPR modes in three plexciton branches are used to analyze the exciton-polaritons in the system.Furthermore,the strong coupling between two different excitons and LSPRs is manipulated by tuning F or WM exciton resonances.We investigate strong exciton-plasmon coupling and plasmon-mediated hybridization between the Frenkel（F）and Wannier-Mott（WM）excitons of an organic-inorganic hybrid system consisting of a silver ring separated from a monolayer WS2 by J-aggregates.The extinction spectra of the hybrid system calculated by employing the coupled oscillator model are consistent with the results simulated by the finite-difference time-domain method.The calculation results show that strong couplings among F excitons,WM excitons,and localized surface plasmon resonances（LSPRs） lead to the appearance of three plexciton branches in the extinction spectra.The weighting efficiencies of the F exciton,WM exciton and LSPR modes in three plexciton branches are used to analyze the exciton-polaritons in the system.Furthermore,the strong coupling between two different excitons and LSPRs is manipulated by tuning F or WM exciton resonances.

关 键 词：COUPLING extinction silver 

分 类 号：O47[理学—半导体物理]