@article{4bc58adefcd446b3b7d18b178ad85f18,
title = "Fabrication of whispering gallery mode cavity using crystal growth",
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.",
author = "Hiroshi Kudo and Yohei Ogawa and Takumi Kato and Atsushi Yokoo and Takasumi Tanabe",
note = "Funding Information: This work was supported by the Strategic Information and Communication R&D Promotion Programme (SCOPE), a Grant-in-Aid for Scientific Research from the Ministry of Education, Culture, Sports, Science and Techonology, Japan (KAKEN #25600118), and Keio University's Program for the Advancement of Next Generation Research Projects.",
year = "2013",
month = may,
day = "27",
doi = "10.1063/1.4807924",
language = "English",
volume = "102",
journal = "Applied Physics Letters",
issn = "0003-6951",
publisher = "American Institute of Physics Publising LLC",
number = "21",
}