Abstract
The structure of the optical spectra related to the resonant interaction of quasi-two-dimensional excitons and localized plasmons is investigated theoretically. The constant of plasmon–exciton coupling is estimated in a model considering a semiconductor quantum well close to a layer of metal nanoparticles in an adjacent dielectric medium. Numerical calculations carried out for GaAs/Ag and ZnO/Al nanosystems indicate that near the plasmon–exciton resonance the spectrum features a double-peak structure which exhibits the plasmon-excitonic anticrossing behavior upon detuning from exact resonance.
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Funding
This study was supported by the Russian Foundation for Basic Research (project no. 18-02-00668) and the Government of the Russian Federation (contract no. 14.W03.31.0011, Laboratory for Optics of Crystals and Heterostructures with Extreme Two-Dimensionality, Laboratory head B. Gil).
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Translated by M. Skorikov
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Averkiev, N.S., Korotchenkov, A.V. & Kosobukin, V.A. On the Theory of Plasmon–Excitons: An Estimate of the Coupling Constant and the Optical Spectrum. Semiconductors 53, 1042–1047 (2019). https://doi.org/10.1134/S1063782619080050
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DOI: https://doi.org/10.1134/S1063782619080050