@other{https://authors.library.caltech.edu/records/dcrvb-95m18,
    title = "Flat silicon gradient index lens with deep reactive-ion-etched 3-layer anti-reflection structure for millimeter and submillimeter wavelengths",
    year = "2024",
    url = "https://authors.library.caltech.edu/records/dcrvb-95m18",
    id = "record",
    doi = "10.48550/arxiv.2401.17637"
}