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Updated: Jan 21, 2026

Fiber Optic Distributed Sensors for High-resolution Temperature Field Mapping
Published on: November 7, 2016
Mapping of the resistance of a superconducting transition edge sensor as a function of temperature, current, and
Shuo Zhang1, Megan E Eckart2, Felix T Jaeckel1
1Physics Department, University of Wisconsin-Madison 1150 University Avenue, Madison, WI 53706, USA.
Abstract:
We have measured the resistance R(T, I, B ext) of a superconducting transition edge sensor over the entire transition region on a fine scale, producing a 4-dimensional map of the resistance surface. The dimensionless temperature and current sensitivities of the TES resistance have been determined at each point. α and β are closely related to the sensor performance, but show a great deal of complex, large amplitude fine structure over large portions of the surface that is sensitive to the applied magnetic field. We discuss the relation of this structure to the presence of Josephson "weak link" fringes.
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