Journal
JOURNAL OF CHEMICAL PHYSICS
Volume 154, Issue 12, Pages -Publisher
AIP Publishing
DOI: 10.1063/5.0038086
Keywords
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Funding
- UK EPSRC via the Hybrid Polaritonics Program [EP/M025330/1]
- UK EPSRC through a DTG allocation
- University of Cyprus through the Research Fellowship Program Onisilos
- EPSRC [EP/M025330/1] Funding Source: UKRI
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Researchers have fabricated organic semiconductor microcavities containing J-aggregates of a cyanine dye with an extended optical path-length, and studied the structures using optical-reflectivity, finding a transition from normal strong coupling to decoupled photon-modes by changing the effective oscillator strength within the cavity. Both coupled and decoupled structures were compared in terms of the distribution of the confined optical field using an eight-level modified Hamiltonian.
We have fabricated organic semiconductor microcavities having an extended optical path-length (up to 2 mu m) that contain J-aggregates of a cyanine dye. These structures are studied using optical-reflectivity and are found to be characterized by a series of polaritonic modes. By changing the effective oscillator strength of the dye within the cavity, we evidence a transition from normal strong coupling in which the photon modes are coupled to one another via the excitonic transition of the molecular dye to a state in which photon-modes become decoupled. We use an eight-level modified Hamiltonian to describe the optical properties of the system and compare the distribution of the confined optical field in coupled and decoupled structures.
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