Semicylindrical microresonator: excitation, modal structure, and Q factor

The semicylindrical microresonator with relatively simple excitation with a plane wave is studied. The resonator is formed on the base of the dielectric/metal/dielectric structure, where the wave energy penetrates into resonator through a thin metal layer and stored in a semicylindrical dielectric w...

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Veröffentlicht in:arXiv.org 2020-05
Hauptverfasser: Haroyan, Hovhannes, Parsamyan, Henrik, Yezekyan, Torgom, Nerkararyan, Khachatur
Format: Artikel
Sprache:eng
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Zusammenfassung:The semicylindrical microresonator with relatively simple excitation with a plane wave is studied. The resonator is formed on the base of the dielectric/metal/dielectric structure, where the wave energy penetrates into resonator through a thin metal layer and stored in a semicylindrical dielectric with high permittivity. The proposed microresonator combines features of Fabry-Perot and Whispering gallery mode resonators. Dependence of radiation losses on the radius and materials are estimated by theoretical analysis, while excitation by a plane wave is shown via numerical analysis. The quality Q-factor of the resonator can achieve up to 104, at a radius of a semicylinder of several microns.
ISSN:2331-8422
DOI:10.48550/arxiv.2005.14527