Fabrication of whispering gallery mode cavity using crystal growth

Hiroshi Kudo, Yohei Ogawa, Takumi Kato, Atsushi Yokoo, Takasumi Tanabe

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

We developed a method for fabricating crystalline whispering gallery mode cavities based on laser-heated pedestal growth. We fabricated sapphire cavities and obtained a Q factor of 1.6 × 104 with a cavity whose radius was about 120 μm. We showed numerically that the cross sectional shape of the cavity is sensitive to the cavity Q, and we controlled it by changing the growth condition in the molten zone, without significantly degrading the crystal structure.

Original languageEnglish
Article number211105
JournalApplied Physics Letters
Volume102
Issue number21
DOIs
Publication statusPublished - 2013

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whispering gallery modes
crystal growth
cavities
fabrication
Q factors
sapphire
crystal structure
radii
lasers

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Fabrication of whispering gallery mode cavity using crystal growth. / Kudo, Hiroshi; Ogawa, Yohei; Kato, Takumi; Yokoo, Atsushi; Tanabe, Takasumi.

In: Applied Physics Letters, Vol. 102, No. 21, 211105, 2013.

Research output: Contribution to journalArticle

Kudo, Hiroshi ; Ogawa, Yohei ; Kato, Takumi ; Yokoo, Atsushi ; Tanabe, Takasumi. / Fabrication of whispering gallery mode cavity using crystal growth. In: Applied Physics Letters. 2013 ; Vol. 102, No. 21.
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