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Whispering gallery modes of an open hemispherical image dielectric resonator
Author(s) -
Kharkovsky Sergey,
Filipov Yuri,
Eremenko Zoya
Publication year - 1999
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/(sici)1098-2760(19990520)21:4<252::aid-mop6>3.0.co;2-o
Subject(s) - whispering gallery wave , resonator , dielectric resonator antenna , optics , dielectric , physics , dielectric resonator , microwave , wavelength , q factor , whispering gallery , helical resonator , optoelectronics , quantum mechanics
New results of theoretical and experimental investigation of an open hemispherical image dielectric resonator (HIDR) with whispering gallery modes (WGM) are presented. The dependences of the WGM complex resonator frequencies on resonator parameters have been studied by the integral equation method. The dependences of the delay factor and Q ‐factor of HIDR WGM on resonator parameters and wavelength have been calculated numerically. It is shown that the WGM spectrum density of HIDR is smaller than that of a dielectric sphere. It is discovered that the dependence of the Q ‐factor of an open dielectric resonator WGM on the polar index has a maximum. ©1999 John Wiley & Sons, Inc. Microwave Opt Technol Lett 21: 252–257, 1999.