Strong coupling of multiple plasmon modes and excitons with excitation light controlled active tuning.

ABSTRACT: While the strong coupling between cavity modes and quantum emitters has been investigated in various systems, multiple surface plasmon modes in single nanostructures strongly coupling with excitons are rarely explored. Here, we investigate the strong coupling between three surface plasmon modes in silver nanowires and excitons in monolayer WSe₂ at room temperature. Four plasmon-exciton polariton (plexciton) states are observed in the scattering spectra. The photoluminescence (PL) spectra of the hybrid system show clear splitting due to strong coupling, and the energies of the emission corresponding to the two lower plexciton states agree with that of the scattering very well. In addition, we show that the plasmon-exciton interaction in this system can be efficiently tuned by con

SUBMITTER: Niu Y 

PROVIDER: S-EPMC11636511 | biostudies-literature | 2023 Feb

REPOSITORIES: biostudies-literature