@inbook{https://resolver.caltech.edu/CaltechAUTHORS:20220421-197072600,
    title = "Integrated Optics: Devices, Materials, and Technologies XXV",
    chapter = "Part-per-trillion trace gas detection using frequency-locked whispering gallery mode microtoroids",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20220421-197072600",
    id = "record",
    isbn = "9781510642133",
    doi = "10.1117/12.2578032"
}