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Search Publications by Bradley Dober

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Displaying 1 - 8 of 8

Demonstration of 220/280 GHz Multichroic Feedhorn-Coupled TES Polarimeter

Author(s)
Samantha L. Walker, Carlos E. Sierra, Jason E. Austermann, James A. Beall, Daniel T. Becker, Bradley J. Dober, Shannon M. Duff, Gene C. Hilton, Johannes Hubmayr, Jeffrey L. Van Lanen, Jeff McMahon, Sara M. Simon, Joel N. Ullom, Michael R. Vissers
We describe the design and measurement of feedhorn-coupled, transition-edge sensor (TES) polarimeters with two passbands centered at 220 GHz and 280 GHz

Crosstalk in microwave SQUID multiplexers

Author(s)
John A. Mates, Daniel T. Becker, Douglas A. Bennett, Bradley J. Dober, Johnathon D. Gard, Gene C. Hilton, Daniel S. Swetz, Leila R. Vale, Joel N. Ullom
Low-temperature detector technologies provide extraordinary sensitivity for applications ranging from precision measurements of the cosmic microwave background

Tile-and-trim micro-resonator array fabrication optimized for high multiplexing factors

Author(s)
Christopher M. McKenney, Jason E. Austermann, James A. Beall, Bradley J. Dober, Shannon M. Duff, Jiansong Gao, Gene C. Hilton, Johannes Hubmayr, Dale Li, Joel N. Ullom, Jeffrey L. Van Lanen, Michael R. Vissers
We present a superconducting micro-resonator array fabrication method that is scalable and reconfigurable and has been optimized for high multiplexing factors

Low-Temperature Detectors for CMB Imaging Arrays

Author(s)
Johannes Hubmayr, Jason E. Austermann, James A. Beall, Daniel T. Becker, Bradley J. Dober, Shannon M. Duff, Jiansong Gao, Gene C. Hilton, Christopher M. McKenney, Joel N. Ullom, Jeffrey L. Van Lanen, Michael R. Vissers
We review advances in low-temperature detector (LTD) arrays for cosmic microwave background (CMB) polarization experiments, with a particular emphasis on

Millimeter-Wave Polarimeters Using Kinetic Inductance Detectors for TolTEC and Beyond

Author(s)
Jason E. Austermann, James A. Beall, Sean A. Bryan, Bradley J. Dober, Jiansong Gao, Gene C. Hilton, Johannes Hubmayr, Phillip Mauskopf, Christopher M. McKenney, S M. Simon, Joel N. Ullom, Michael R. Vissers, G W. Wilson
Microwave kinetic inductance detectors (MKIDs) provide a compelling path forward to the large-format polarimeter, imaging, and spectrometer arrays needed for

Superconducting micro-resonator arrays with ideal frequency spacing

Author(s)
Xiangliang Liu, Weijie Guo, Y Wang, M Dai, L F. Wei , Bradley J. Dober, Christopher M. McKenney, Gene C. Hilton, Johannes Hubmayr, Jason E. Austermann, Joel N. Ullom, Jiansong Gao, Michael R. Vissers
We present a wafer trimming technique for producing superconducting micro-resonator arrays with highly uniform frequency spacing. With the light-emitting diode

Microwave SQUID Multiplexer for Cosmic Microwave Background Imagers

Author(s)
Bradley J. Dober, Daniel T. Becker, Douglas A. Bennett, Sean A. Bryan, Shannon M. Duff, Johnathon D. Gard, James P. Hays-Wehle, Johannes Hubmayr, John A. Mates, Carl D. Reintsema, Leila R. Vale
Key performance characteristics are demonstrated for the microwave SQUID multiplexer (µmux) coupled to transition edge sensor (TES) bolometers that have been