Semicylindrical microresonator: excitation, modal structure, and Q factor
arXiv:2005.14527 · doi:10.1364/AO.57.006309
Abstract
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.
arXiv comment5 pages, 4 figures, 9 equations, 31 references
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