Journal
OPTICAL MATERIALS EXPRESS
Volume 12, Issue 2, Pages 685-696Publisher
OPTICAL SOC AMER
DOI: 10.1364/OME.446811
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- Ministry of Science and Higher Education of the Russian Federation [075-15-2019-1934]
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This study proposed a magnetophotonic Tamm structure with a bilayer film of Bi-substituted iron garnets (Bi:IG) that exhibits a significant magneto-optical response. Tamm plasmon-polaritons (TPP) were excited at the interface of the Au layer placed in a microcavity. Theoretical and experimental investigations were conducted on the optical and magneto-optical spectra of the hybrid state, showing anticrossing behavior and dependence of spectral splitting on the thickness of the Au layer. The results provide insights for the design of tunable magneto-optical devices and sensors.
A magnetophotonic Tamm structure with a bilayer film of Bi-substituted iron garnets (Bi:IG) with a significant magneto-optical (MO) response, placed in microcavity, and Tamm plasmon-polaritons (TPP) excited at the interface of the Au layer, were proposed. Optical and MO spectra of the hybrid state were investigated theoretically and experimentally in Faraday effect geometry at a normal incidence of the light wave. Anticrossing behavior of the TPP and Fabry-Perot resonances and dependence of spectral splitting on their hybrid state on the thickness of the Au layer was shown. By varying the thickness of the top SiO2 layer in the structure, the modifications of spectra on the TPP spectral position were described in detail. The results can be used to design tunable MO devices and sensors.
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