Polariton-assisted splitting of broadband emission spectra of strongly coupled organic dye excitons in tunable optical microcavity

• DOI: 10.1364/oe.27.004077
• Publication Date: 2019-02-05T14:12:56Z
• Authors: Dmitriy Dovzhenko; Konstantin Mochalov; Ivan Vaskan; Irina Kryukova; Yury Rakovich; Igor Nabiev
• Keywords: Optical microcavity; Purcell effect

Resonance interaction between a localized electromagnetic field and excited states in molecules paves the way to control fundamental properties of matter. In this study, we encapsulated organic with relatively low unoriented dipole moments polymer matrix, placed them tunable optical microcavity realized, for first time, controllable modification broad photoluminescence (PL) emission these strong coupling regime at room temperature. Notably, while most previous studies it was reported that single mode dominates PL signal (radiation so-called branch lower polariton), here report on observation two distinct peaks, evolution which has been followed as is detuned from excitonic resonance. A significant Rabi splitting estimated modified spectra large 225 meV. The developed approach can be used both research resonant light-mater its practical applications sensing development coherent spontaneous sources using combination carefully designed wide variety molecules.