@other{https://resolver.caltech.edu/CaltechETD:etd-07062006-135109,
    title = "Ultrahigh–Q Microtoroid On-Chip Resonators for Low Threshold Microlasers",
    url = "https://resolver.caltech.edu/CaltechETD:etd-07062006-135109",
    id = "record",
    doi = "10.7907/KGE9-J792"
}