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Exciton-Plasmon Coupling and Electromagnetically Induced Transparency in Monolayer Semiconductors Hybridized with Ag
Weijie Zhao1, Shunfeng Wang1, Bo Liu2
1Department of Physics, Centre for Advanced 2D Materials and Graphene Research Centre, National University of Singapore, 2 Science Drive 3, 117542, Singapore.
Abstract:
Exciton-plasmon coupling in hybrids of a monolayer transition metal dichalcogenide and Ag nanoparticles is investigated in the weak and strong coupling regimes. In the weak coupling regime, both absorption enhancement and the Purcell effect collectively modify the photoluminescence properties of the semiconductor. In the strong coupling regime, electromagnetically induced transparency dips are displayed, evidencing coherent energy exchange between excitons and plasmons.
