Coupling, lifetimes and "strong coupling" maps for single molecules at plasmonic interfaces

Abstract

The interaction between excited states of a molecule and excited states of metal nanostructure (e.g. plasmons) leads to hybrid states with modified optical properties.When plasmon resonance is swept through molecular transition frequency an avoided crossing may be observed, which is often regarded as a signature of strong coupling between plasmons and molecules. Such strong coupling is expected to be realized when 2|U |/ Γ > 1, where U and Γ are the molecule-plasmon coupling and the spectral width of the optical transition respectively. Because both U and Γ strongly increase with

Quantum thermodynamics of periodically driven polaritonic systems

“…Introduction. Hybrid polaritonic states, resulting from the interaction between excitons and photons, manifests on systems such as molecules in cavities [1,2], plexcitons [3,4], optically-stimulated semiconductors [5][6][7][8][9], and nanomechanical devices [10][11][12]. Excitonic polaritons display distinct properties that frequently depart from those of their components, providing an ideal platform for the investigation of strong coupling emergence, hybrid-state formation, their quantum control and potential quantum technologies [13].…”