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Johannes Hubmayr (Fed)

Dr. Johannes Hubmayr is an experimental physicist and Group Leader in the Quantum Electromagnetics Division. He joined NIST in 2010. His Group designs and micro-fabricates custom cryogenic sensor arrays and multiplexed readout for applications in cosmology, astrophysics, security, and increasingly in support of quantum information science. In one research theme, the Group works in large scientific collaborations to build millimeter-wave cameras that make exquisite measurements of the cosmos to understand fundamental physics, how the universe began, how it has evolved, and to determine the values of cosmological parameters such as the physical baryon density to high precision. Dr. Hubmayr’s areas of technical expertise include large-format cryogenic focal planes, transition edge sensor (TES) bolometers, microwave kinetic inductance detectors (MKIDs), millimeter-wave polarimetry, SQUID multiplexed cryogenic readout, microfabrication design, and millimeter-wave feedhorns. As of early 2023, Dr. Hubmayr’s 300+ scientific publications have been cited 11,400+ times.

Google Scholar Profile

Research Interests

  • Ultra-sensitive measurements in the millimeter to far-infrared
  • Millimeter-wave polarimetry
  • Cosmology via precision measurements of the Cosmic Microwave Background (CMB)
  • Multiplexed cryogenic power sensors

Awards

Publications

EMI susceptibility of a differential time-division SQUID multiplexing circuit for TES readout

Author(s)
Malcolm Durkin, Douglas Bennett, William Doriese, Johnathon Gard, Johannes Hubmayr, Richard Lew, Erin Maloney, Carl Reintsema, Robinjeet Singh, Daniel Schmidt, Joel Ullom, Leila Vale, Michael Vissers
Time Division multiplexing (TDM) using superconducting quantum interference devices (SQUIDs) is being developed to read out Transition-edge sensor arrays for
Created July 30, 2019, Updated October 11, 2023