Hybrid cavity-antenna architecture for strong and tunable sideband-selective molecular Raman scattering enhancement.

ABSTRACT: Plasmon resonances at the surface of metallic antennas allow for extreme enhancement of Raman scattering. Intrinsic to plasmonics, however, is that extreme field confinement lacks precise spectral control, which would hold great promise in shaping the optomechanical interaction between light and molecular vibrations. We demonstrate an experimental platform composed of a plasmonic nanocube-on-mirror antenna coupled to an open, tunable Fabry-Perot microcavity for selective addressing of individual vibrational lines of molecules with strong Raman scattering enhancement. Multiple narrow and intense optical resonances arising from the hybridization of the cavity modes and the plasmonic broad resonance are used to simultaneously enhance the laser pump and the local density of optical states, and

SUBMITTER: Shlesinger I 

PROVIDER: S-EPMC10732519 | biostudies-literature | 2023 Dec

REPOSITORIES: biostudies-literature