，成果详细信息-凯发网

we have designed and fabricated superconducting ti transition edge sensors (tes) with different microbridge lengths varying from 1 to 6 μm. the current–voltage characteristics of the fabricated ti tess are measured at different bath temperatures using a commercial squid amplifier. the thermal conductance (g) is found to be about 300 pw/k for a 2.6-μm-long device. in addition, the effective response time measured with a current pulse signal is about 3 μs, and decreases with increasing the bias voltage because of negative electro-thermal feedback. the obtained electrical noise equivalent power from the measured current noise is about 4×10−17 w/hz0.5, which is sufficiently low for tesia instrument.