Active Control of Plasmon–Exciton Coupling in MoS₂–Ag Hybrid Nanostructures

Abstract

Optically-controllable plasmon–exciton coupling is achieved in MoS2–Ag hybrid nanostructures, facilitated by a photoexcited exciton-induced modulation of MoS2 dielectric function. The white light spectra of surface plasmon resonances are gradually red-shifted by increasing incident laser power. This spectroscopic tunability can be controlled by the near-field coupling strength and polarization state of light. It can also be selectively applied to control plasmonic dark modes. As a service to our authors and readers, this journal provides supporting information supplied by the authors. Such materials are peer reviewed and may be re-organized for online delivery, but are not copy-edited or typeset. Technical support issues arising from supporting information (other than missing files) should be addressed to the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.