Impedance measurements on a fast transition-edge sensor for optical and near-infrared range

作者：Taralli E^*; Portesi C; Lolli L; Monticone E; Rajteri M; Novikov I; Beyer J

来源：Superconductor Science and Technology, 2010, 23(10): 105012.

DOI：10.1088/0953-2048/23/10/105012

Impedance measurements of superconducting transition-edge sensors (TESs) are a powerful tool to obtain information about the TES thermal and electrical properties. We apply this technique to a 20 mu m x 20 mu m Ti/Au TES, suitable for application in the optical and near-infrared range, and extend the measurements up to 250 kHz in order to obtain a complete frequency response in the complex plane. From these measurements we obtain important thermal and electrical device parameters such as heat capacity C, thermal conductance G and effective thermal time constant tau(eff) that will be compared with the corresponding values obtained from noise measurements.

• 出版日期2010-10