61 citations · 81 across the 8 of their papers we have counts for
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Low two-level-system noise in hydrogenated amorphous silicon
Fabien Defrance, Andrew D. Beyer, Jordan Wheeler +2
At sub-Kelvin temperatures, two-level systems (TLS) present in amorphous dielectrics source a permittivity noise, degrading the performance of a wide range of devices using superco…
NEW-MUSIC: The Next-generation Extended-Wavelength Multiband Sub/millimeter Inductance Camera
Sunil R. Golwala, Andrew D. Beyer, Daniel Cunnane +9
The Next-generation Extended Wavelength-MUltiband Sub/millimeter Inductance Camera (NEW-MUSIC) on the Leighton Chajnantor Telescope (LCT) will be a first-of-its-kind, six-band, tra…
Characterization of the low electric field and zero-temperature two-level-system loss in hydrogenated amorphous silicon
Fabien Defrance, Andrew D. Beyer, Shibo Shu +2
Two-level systems (TLS) are an important, if not dominant, source of loss and noise for superconducting resonators such as those used in kinetic inductance detectors and some quant…
Hierarchical phased-array antennas coupled to Al KIDs: a scalable architecture for multi-band mm/submm focal planes
Jean-Marc Martin, Junhan Kim, Fabien Defrance +5
We present the optical characterization of two-scale hierarchical phased-array antenna kinetic inductance detectors (KIDs) for millimeter/submillimeter wavelengths. Our KIDs have a…
Flat silicon gradient index lens with deep reactive-ion-etched 3-layer anti-reflection structure for millimeter and submillimeter wavelengths
Fabien Defrance, Cecile Jung-Kubiak, John Gill +5
We present the design, fabrication, and characterization of a 100 mm diameter, flat, gradient-index (GRIN) lens fabricated with high-resistivity silicon, combined with a three-laye…