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  • Title: Influence of the graphene layer on the strong coupling in the hybrid Tamm-plasmon polariton mode.
    Author: Buzavaite-Verteliene E, Valavicius A, Grineviciute L, Tolenis T, Lukose R, Niaura G, Balevicius Z.
    Journal: Opt Express; 2020 Mar 30; 28(7):10308-10319. PubMed ID: 32225618.
    Abstract:
    The total internal refection ellipsometry (TIRE) method was used for the generation and study of the hybrid TPP-SPP mode on a photonic crystal structure with a thin layer of silver and graphene/PMMA. Raman spectroscopy showed a consistent monolayer graphene present on the Ag layer. Recent studies have also shown that TPP and SPP components in the hybrid plasmonic mode is sensitive to the variation of coupling strength due to presence of the graphene monolayer. The decrease of the TPP and SPP dip components in the TPP-SPP hybrid mode can be explained by the changes of the conductivity of the silver layer due to the presence of this additional graphene/PMMA structure, which results in the non-optimal resonance conditions for the hybrid plasmonic mode. The modified positions of the TPP and SPP components in the wavelength spectra when compared to their original, separate excitations, indicates a strong coupling regime. The design of these hybrid plasmonic/graphene-based nanostructures has attractive capabilities for the development of advanced optical sensors and integrated optical circuit technologies.
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