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Free keywords:
Physics, Optics, physics.optics, Condensed Matter, Materials Science, cond-mat.mtrl-sci,Quantum Physics, quant-ph
Abstract:
We explore several schemes of electromagnetic field confinement aimed at
facilitating the collective strong coupling of a localized photonic mode to
molecular vibrations in the terahertz region. The key aspects are the use of
plasmonic metasurface structures combined with standard Fabry-Perot
configurations and the deposition of a thin layer of glucose, via a spray
coating technique, within a tightly focused electromagnetic mode volume. We
observe vacuum Rabi splittings reaching up to 140 GHz and study the complex
interplay between plasmonic resonances, photonic cavity modes and low-energy
molecular resonances. Our study provides key insight into the design of
polaritonic platforms with organic molecules to harvest the unique properties
of hybrid light-matter states.
