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Search Publications by: Ian Fogarty Florang (Assoc)

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Displaying 1 - 5 of 5

A study of the position-dependent response of thermal kinetic inductance detectors through the use of cryogenic beam steering

April 2, 2026
Author(s)
Ian Fogarty Florang, Jonathan Dean, Joseph Fowler, Tom-Erik Haugen, Shannon Hoogerheide, Daniel Jardin, Hans Mumm, Nathan Nakamura, Matthew Natale, Galen O'Neil, Nathan Ortiz, Jeremy Paster, Thomas Rao, Avirup Roy, Daniel Swetz, Joel Ullom, Michael Vissers, Paul Szypryt
There are a number of considerations when designing a low-temperature detector for the best possible energy resolution. One that has been particularly challenging for thermal kinetic inductance detectors (TKIDs) is ensuring that the detector's response to

Prospects of kinetic inductance current sensors for multiplexed microcalorimeter readout

March 12, 2026
Author(s)
Galen O'Neil, Simon Bandler, Ian Fogarty Florang, John Mates, Daniel Swetz, Paul Szypryt, Thomas Stevenson, Leaf Swordy, Joel Ullom, Michael Vissers, Jordan Wheeler, Wonsik Yoon
Superconducting microcalorimeter arrays with hun- dreds to thousands of pixels are enabling new measurements and capabilities in exotic atom spectroscopy, x-ray astronomy, nuclear materials analysis, and many other fields. We consider the prospects of

Computed models of natural radiation backgrounds in qubits and superconducting detectors

December 9, 2024
Author(s)
Joseph Fowler, Ian Fogarty Florang, Nathan Nakamura, Daniel Swetz, Paul Szypryt, Joel Ullom
Naturally occurring radiation backgrounds cause correlated decoherence events in superconducting qubits. These backgrounds include gamma rays produced by terrestrial radioisotopes and cosmic rays. We use the particle-transport code Geant4 and the PARMA

Spectroscopic Measurements and Models of Energy Deposition in the Substrate of Quantum Circuits by Natural Ionizing Radiation

November 12, 2024
Author(s)
Joseph Fowler, Paul Szypryt, Raymond Bunker, Ellen Edwards, Ian Fogarty Florang, JIANSONG GAO, Shannon Hoogerheide, Ben Loer, Hans Mumm, Nathan Nakamura, John Orrell, Elizabeth M. Scott, Jason Stevens, Daniel Swetz, Brent VanDevender, Michael Vissers, Joel Ullom
Naturally occurring background radiation is a potential source of correlated decoherence events in superconducting qubits that will challenge error-correction schemes. In order to characterize the radiation environment in an unshielded laboratory

Kinetic inductance current sensor for visible to near-infrared wavelength transition-edge sensor readout

November 6, 2024
Author(s)
Paul Szypryt, Douglas Bennett, Ian Fogarty Florang, Joseph Fowler, Jiansong Gao, Andrea Giachero, Ruslan Hummatov, Adriana Lita, John Mates, Sae Woo Nam, Daniel Swetz, Joel Ullom, Michael Vissers, Jordan Wheeler
Single-photon detectors based on the superconducting transition-edge sensor are used in a number of visible to near-infrared applications, particularly for photon-number-resolving measurements in quantum information science. To be practical for large-scale
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