Abstract
AbstractStrong 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 it is shown 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. These results 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.
Highlights
COPYRIGHT AND REUSE Open Research Exeter makes this work available in accordance with publisher policies
While hybridization different molecular vibrational resonances of the same molecular unit may be coupled together, the resulting polariton having characteristics of all three vibrational resonances. These results suggest that strong coupling might be used to manipulate vibrational resonances in a richer and subtler way than of two different vibrational resonances of a single molecular species to a cavity mode were reported by George et al.[23]
Our results show that distinct molecular vibrational resonances, here associated with C O, CH2, and CH3, may be hybridized by strong coupling each of them to the same cavity/plasmon mode
Summary
TITLE Hybridization of multiple vibrational modes via strong coupling using confined light fields (article) AUTHORS Menghrajani, K; Fernandez, H; Nash, G; et al JOURNAL Advanced Optical Materials DEPOSITED IN ORE 13 June 2019. COPYRIGHT AND REUSE Open Research Exeter makes this work available in accordance with publisher policies. A NOTE ON VERSIONS The version presented here may differ from the published version. You are advised to consult the published version for pagination, volume/issue and date of publication
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