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Control of the surface plasmon dispersion and Purcell effect at the metamaterial-dielectric interface.

ABSTRACT: The use of metamaterial as a way to mitigate the negative effects of absorption in metals on the Purcell effect in metal-dielectric structures is investigated. A layered metal-dielectric structure is considered as an anisotropic medium in the long-wavelength limit. The dispersion of the surface plasmon appearing at the boundary between such a structure and a different dielectric material, as well as the position of the peak in the local density of states are studied for various combinations of materials and filling factors of the periodic structure. The calculated frequency dependence of the Purcell factor demonstrates an increase in peak value compared to the conventional plasmonic structure. The results obtained using effective media approach are compared to the results of numerical modelling.

SUBMITTER: Ivanov KA

PROVIDER: S-EPMC7705705 | biostudies-literature | 2020 Nov

REPOSITORIES: biostudies-literature

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Control of the surface plasmon dispersion and Purcell effect at the metamaterial-dielectric interface.

Ivanov Konstantin A KA Morozov Konstantin M KM Pozina Galia G Gubaydullin Azat R AR Girshova Elizaveta I EI Kaliteevski Mikhail A MA

Scientific reports 20201130 1

The use of metamaterial as a way to mitigate the negative effects of absorption in metals on the Purcell effect in metal-dielectric structures is investigated. A layered metal-dielectric structure is considered as an anisotropic medium in the long-wavelength limit. The dispersion of the surface plasmon appearing at the boundary between such a structure and a different dielectric material, as well as the position of the peak in the local density of states are studied for various combinations of m ...[more]

PMID: 33257765

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