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Conferences > LS > 2022 > JTu5A > JTu5A.89

Q enhancement of a double-disk cavity based on mode cancellation

Seung Hyeon Hong, Young Jin Lee, Seokhyeon Hong, Youngsoo Kim, and Soon-Hong Kwon

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Abstract

We propose a way to increase the quality factor of whispering-gallery-mode resonators by using a dielectric double-disk cavity with a vertical air gap. Our cavity reaches a 5.67-folds quality factor enhancement compared to a single disk by radiation field suppression through destructive interference with opposite electric fields in each disk.

© 2022 The Author(s)

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