Fabrication of whispering gallery mode cavity using crystal growth

被引：11
|
作者：
Kudo, Hiroshi [1 ]
Ogawa, Yohei [1 ]
Kato, Takumi [1 ]
Yokoo, Atsushi [2 ,3 ]
Tanabe, Takasumi [1 ]
机构：
[1] Keio Univ, Fac Sci & Technol, Dept Elect & Elect Engn, Yokohama, Kanagawa 2238522, Japan
[2] NTT Corp, NTT Nanophoton Ctr, Atsugi, Kanagawa 2430198, Japan
[3] NTT Corp, NTT Basic Res Labs, Atsugi, Kanagawa 2430198, Japan
来源：
APPLIED PHYSICS LETTERS | 2013年 / 102卷 / 21期
关键词：
OPTICAL MICROCAVITIES; TOROID MICROCAVITY; MEMORY; CHIP; LASER;
D O I：
10.1063/1.4807924
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
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 x 10(4) with a cavity whose radius was about 120 mu m. 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. (C) 2013 AIP Publishing LLC.
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页数：4
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