Polaritonic linewidth asymmetry in the strong and ultrastrong coupling regime.

ABSTRACT: The intriguing properties of polaritons resulting from strong and ultrastrong light-matter coupling have been extensively investigated. However, most research has focused on spectroscopic characteristics of polaritons, such as their eigenfrequencies and Rabi splitting. Here, we study the decay rates of a plasmon-microcavity system in the strong and ultrastrong coupling regimes experimentally and numerically. We use a classical scattering matrix approach, approximating our plasmonic system with an effective Lorentz model, to obtain the decay rates through the imaginary part of the complex quasinormal mode eigenfrequencies. Our classical model automatically includes all the interaction terms necessary to account for ultrastrong coupling without dealing with the rotating-wave approximation an

SUBMITTER: Canales A 

PROVIDER: S-EPMC11501566 | biostudies-literature | 2023 Oct

REPOSITORIES: biostudies-literature