Strong coupling of molecules placed in an optical microcavity may lead to the
formation of hybrid states called polaritons; states that inherit characteristics of both the
optical cavity modes and the molecular resonance. This is possible for both excitonic and
vibrational molecular resonances. Previous work has shown that strong ...
Strong coupling of molecules placed in an optical microcavity may lead to the
formation of hybrid states called polaritons; states that inherit characteristics of both the
optical cavity modes and the molecular resonance. This is possible for both excitonic and
vibrational molecular resonances. Previous work has shown that strong coupling may be used
to hybridize two different excitonic resonances, this can be achieved when more than one
molecular species is included in the cavity. Here we show that under suitable conditions three
different molecular vibrational resonances of the same molecular unit may also be coupled
together, the resulting polariton having characteristics of all three vibrational resonances. Our
results lead us to suggest that strong coupling might be used to manipulate vibrational
resonances in a richer and subtler way than previously considered, opening a path to greater
control of molecular systems and molecular processes via vibrational strong coupling.