posted on 2023-11-30, 18:24authored byK. N. Pichugin, A. F. Sadreev
We study the behavior of resonant modes under variation of the distance between two coaxial dielectric disks and show an avoided crossing of resonances because of interaction between the disks. Owing to coaxial arrange of disks the consideration is separated by the azimuthal index $m=0, 1, 2, \ldots$. In the present paper we consider the case $m=0$. For a long enough distance the resonant modes can be classified as symmetric and antisymmetric hybridizations of the resonant modes of the isolated disk. With decreasing of the distance the interaction becomes stronger that gives rise to avoided crossing of different resonances of the isolated disk. That in turn enhances the $Q$ factor of two disks by one order in magnitude compared to the $Q$ factor of isolated disk.
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