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On the existence of 'super-resonant' states in sub-wavelength dielectric resonators and their relation to bound states in the continuum


Lebedev Physical Institute, Russian Academy of Sciences, Leninsky prosp. 53, Moscow, 119991, Russian Federation

It is shown in this letter related to the paper by M.V.&nbs;Rybin and M.F. Limonov [Physics—Uspekhi 62 (8) (2019)] that in dielectric sub-wavelength resonators of equal volume but different shape no eigen-modes exist that would be qualitatively different from those in dielectric spheres. In particular, there are no 'super-resonant' modes in dielectric cylinders whose Q-factor would exceed that of similar modes in dielectric spheres of the same volume.

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Fulltext is also available at DOI: 10.3367/UFNe.2019.05.038619
Keywords: nano-optics, dielectric sub-wavelength resonators, eigen-modes, Q-factors
PACS: 42.25.−p, 42.70.Qs, 78.67.−n, 78.67.Pt (all)
DOI: 10.3367/UFNe.2019.05.038619
URL: https://ufn.ru/en/articles/2019/10/k/
000508386600011
2-s2.0-85080926335
2019PhyU...62.1058K
Citation: Klimov V V "On the existence of 'super-resonant' states in sub-wavelength dielectric resonators and their relation to bound states in the continuum" Phys. Usp. 62 1058–1059 (2019)
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Received: 24th, April 2019, 30th, May 2019

Оригинал: Климов В В «О существовании "суперрезонансных" состояний в субволновых диэлектрических резонаторах и их связи со связанными состояниями в континууме» УФН 189 1131–1133 (2019); DOI: 10.3367/UFNr.2019.05.038619

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