Can we couple multiple molecular species to soft-cavities? The answer to this question has relevance in designing open cavities for polaritonic chemistry applications. Due
to the differences in adhesiveness it is difficult to couple multiple molecular species to
open cavities in a controlled and precise manner. In this letter, we ...
Can we couple multiple molecular species to soft-cavities? The answer to this question has relevance in designing open cavities for polaritonic chemistry applications. Due
to the differences in adhesiveness it is difficult to couple multiple molecular species to
open cavities in a controlled and precise manner. In this letter, we discuss the procedure
to coat multiple dyes, TDBC and S2275, using a layer-by-layer deposition technique
onto a dielectric microsphere so as to facilitate the multi molecule coupling. We observed
the formation of a middle polariton branch due to the inter-molecular mixing facilitated
by the whispering gallery modes. The coupling strength,2g, of the TDBC molecules
were found to be 98 meV while that of S2275 molecules was 78 meV. The coupling
strength was found to be greater than the cavity linewidth and the molecular absorption
linewidth showing the system is in the strong coupling regime.
