James A. Beall

Publications

Advanced ACTPol Multichroic Polarimeter Array Fabrication Process for 150 mm Wafers

July 22, 2015

Author(s):

Shannon M. Duff, Gene C. Hilton, Johannes Hubmayr, James A. Beall, Jason E. Austermann, Daniel T. Becker, Jeffrey L. Van Lanen

Advanced ACTPol is a third generation cosmic microwave background (CMB) receiver, deploying in 2016 on the Atacama Cosmology Telescope (ACT) in the Atacama...

Photon-noise limited sensitivity in titanium nitride kinetic inductance detectors

February 20, 2015

Author(s):

Johannes Hubmayr, James A. Beall, Daniel T. Becker, Hsiao-Mei Cho, Gene C. Hilton, Dale Li, David P. Pappas, Jeffrey L. Van Lanen, Mark Devlin, Kent D. Irwin, Chris Groppi, Phillip Mauskopf

We demonstrate photon-noise limited performance at sub-millimeter wavelengths in microwave kinetic inductance detectors (MKIDs) made of a new superconducting...

Standoff passive video imaging at 350 GHz with 251 superconducting detectors

June 20, 2014

Author(s):

Daniel T. Becker, James A. Beall, Hsiao-Mei Cho, Gene C. Hilton, Nicholas G. Paulter Jr., Carl D. Reintsema, Robert E. Schwall, Cale Gentry, Ilya Smirnov, Peter Ade, W D. Duncan, Mark Halpern, Carole Tucker

Millimeter wavelength radiation holds promise for detection of security threats at a distance, including suicide bomb belts and maritime threats in poor...

Dual-polarization-sensitive kinetic inductance detectors for balloon-borne, sub-millimeter polarimetry

March 20, 2014

Author(s):

James A. Beall, Daniel T. Becker, Justus A. Brevik, Hsiao-Mei Cho, Gene C. Hilton, Kent D. Irwin, Dale Li, David P. Pappas, Jeffrey L. Van Lanen, Johannes Hubmayr

We are developing arrays of kinetic inductance detectors for sub-millimeter polarimetry that will be deployed on the BLAST balloon-borne instrument. The array...

Improvements in silicon oxide dielectric loss for superconducting microwave detector circuits

January 24, 2013

Author(s):

Dale Li, Jason Austermann, James A. Beall, Daniel T. Becker, Hsiao-Mei Cho, Anna E. Fox, Nils Halverson, Jason Henning, Gene C. Hilton, Johannes Hubmayr, Jeffrey L. Van Lanen, John P. Nibarger, Michael D. Niemack, Kent D. Irwin

Dielectric loss in low-temperature superconducting integrated circuits can cause lower overall efficiency, particularly in the 90 to 220 GHz regime. We present...