162 citations · 208 across the 20 of their papers we have counts for
7 papers · 1 filter
Operation of Unshielded Kinetic-Inductance Traveling-Wave Parametric Amplifiers in Multi-Tesla Fields
Christian Boutan, Erik Lentz, Corwin Shiu +12
Cryogenic parametric amplifiers are used to amplify radio-frequency signals for a range of applications in basic and applied science. Both Josephson Parametric Amplifiers and Josep…
The SPT-3G+ receiver design
H. Athreya, Z. Ahmed, J. E. Austermann +71
We present the thermo-mechanical design of the cryostat and camera optics for SPT-3G+, a new receiver being developed for the South Pole Telescope (SPT). The receiver consists of 1…
Laser-micromachined silicon-platelet feedhorns for large-scale submillimeter and millimeter-wave focal planes
Jason E. Austermann, James Beall, Andrew Forsman +10
We present the fabrication and characterization of the first silicon-platelet feedhorn arrays produced using laser micromachining. First, we present a demonstration of the technolo…
Precise 2D electric field density simulations for superconducting quantum devices
Zydrunas Gimbutas, Wei-Ren Syong, Nhi Nguyen +5
Dielectric loss due to two-level systems is a limiting factor for superconducting qubit relaxation times. These losses arise mostly from nanometer-scale interfacial defect regions…
Multi-stage Quantum Amplifier Readout Chain
Logan Howe, Andrea Giachero, Michael Vissers +5
Multi-stage cryogenic readout chains with a wide bandwidth and added noise within a few quanta of the quantum limit are frequently constructed using traveling-wave parametric ampli…
CCAT: Silicon-Platelet Feedhorns for Submillimeter Wavelengths
Jason Austermann, James Beall, James R. Burgoyne +12
Silicon-platelet feedhorn arrays are an established technology at millimeter wavelengths that, for some applications, can provide significant advantages over traditional direct-mac…
Imaging the Superconducting Proximity Effect in S-S'-S Transition Edge Sensors
Austin R. Kaczmarek, Samantha Walker, Jason Austermann +11
Proximity effects at superconducting interfaces, between different superconductors (S-S') or between superconductors and normal metals (S-N), are fundamental to the performance of…