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 μm × 20 μm 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 τeff that will be compared with the corresponding values obtained from noise measurements.
Impedance measurements on a fast transition-edge sensor for optical and near-infrared range / Taralli, Emanuele; Portesi, Chiara; L., Lolli; Monticone, Eugenio; Rajteri, Mauro; I., Novikov; J., Beyer. - In: SUPERCONDUCTOR SCIENCE & TECHNOLOGY. - ISSN 0953-2048. - 23:(2010), pp. 105012-105016. [10.1088/0953-2048/23/10/105012]
Impedance measurements on a fast transition-edge sensor for optical and near-infrared range
TARALLI, EMANUELE;PORTESI, CHIARA;MONTICONE, EUGENIO;RAJTERI, MAURO;
2010
Abstract
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 μm × 20 μm 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 τeff that will be compared with the corresponding values obtained from noise measurements.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
