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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Pichugin K. N., Sadreev A. F.
Заглавие : Interaction between coaxial dielectric disks enhances the Q factor
Коллективы :
Russian Federation for Basic Research (RFBR)Russian Foundation for Basic Research (RFBR) [19-02-00055]; Ministry of Education and Science of Russian FederationMinistry of Education and Science, Russian Federation [3.1845.2017]
Место публикации : J. Appl. Phys. - 2019. - Vol. 126, Is. 9. - Ст.093105. - ISSN 0021-8979, DOI 10.1063/1.5094188. - ISSN 1089-7550(eISSN)
Примечания : Cited References: 32. - We are grateful to A. A. Bogdanov, E. N. Bulgakov, and D. N. Maksimov for numerous and fruitful discussions. This work was supported by the Russian Federation for Basic Research (RFBR) (Grant No. 19-02-00055) and Ministry of Education and Science of Russian Federation (State Contract No. 3.1845.2017).
Предметные рубрики: WHISPERING-GALLERY MODES
QUALITY-FACTOR
Аннотация: 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 the interaction between the disks. Owing to coaxial arrangement of disks, the resonant modes are specified by the azimuthal index m = 0,1,2, ... . In the present paper, we consider the case m = 0. At a long enough distance, the modes are symmetric and antisymmetric hybridizations of the resonant modes of the isolated disk. With decreasing the distance, the interaction becomes stronger, giving rise to avoided crossings of different resonances of the isolated disk. This in turn enhances the Q factor of the two disks by one order in magnitude compared to the Q factor of the isolated disk.
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