Lower Exciton Number Strong Light Matter Interaction in Plasmonic Tweezers

作     者：Yun-Fei Zou Li Yu 邹云飞;于丽

作者机构：School of ScienceBeijing University of Posts and TelecommunicationsBeijing 100876China State Key Laboratory of Information Photonics and Optical CommunicationsBeijing University of Posts and TelecommunicationsBeijing 100876China 

出 版 物：《Chinese Physics Letters》 (中国物理快报（英文版）)

年 卷 期：2021年第38卷第2期

页      面：18-21页

核心收录：

学科分类：070207[理学-光学] 07[理学] 08[工学] 0803[工学-光学工程] 0702[理学-物理学] 

基　　金：Supported by the National Key Research and Development Program of China(Grant No.2016YFA0301300) the Fundamental Research Funds for the Central Universities(Grant No.2019XD-A09) the National Natural Science Foundation of China(Grant No.11574035) 

主　　题：interaction. method. coupling 

摘      要：The plasmonic nanocavity is an excellent platform for the study of light matter interaction within a sub-diffraction volume under ambient *** design a structure of plasmonic tweezers,which can trap molecular Jaggregates and also serve as a plasmonic cavity with which to investigate strong light matter *** optical response of the cavity is calculated via finite-difference time-domain methods,and the optical force is evaluated based on the Maxwell stress tensor *** the help of the coupled oscillator model and virtual exciton theory,we investigate the strong coupling progress at the lower level of excitons,finding that a Rabi splitting of 230 meV can be obtained in a single exciton *** further analyze the relationship between optical force and model volume in the coupling *** proposed method offers a way to locate molecular J-aggregates in plasmonic tweezers for investigating optical force performance and strong light matter interaction.