Josephson effects in an alternating current biased transition edge sensor
Josephson effects in an alternating current biased transition edge sensor
复制标题
交流偏置过渡边缘传感器中的约瑟夫森效应
DOI：
10.1063/1.4899065
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发表时间：
2014
影响因子：
4
通讯作者：
Jan
中科院分区：
文献类型：
--
作者：
L. Gottardi;A. Kozorezov;H. Akamatsu;J. Kuur;M. Bruijn;R. Hartog;R. Hijmering;P. Khosropanah;C. Lambert;A. Linden;M. Ridder;Toyoaki Suzuki;Jan
我们报告的实验证据的交流约瑟夫森效应的过渡边缘传感器（TES）工作在频域复用器和偏置的交流电压在MHz的频率。通过测量传感器的非线性阻抗来观察效果。TES被视为一个弱链接的超导系统，并在反向分流结模型框架内。我们提供了一个完整的理论解释的结果，通过找到系统的非惯性Langevian方程的解析解，并计算检测器的非线性响应的大交流偏置电流中存在的噪声。
We report the experimental evidence of the ac Josephson effect in a transition edge sensor (TES) operating in a frequency domain multiplexer and biased by ac voltage at MHz frequencies. The effect is observed by measuring the non-linear impedance of the sensor. The TES is treated as a weakly linked superconducting system and within the resistively shunted junction model framework. We provide a full theoretical explanation of the results by finding the analytic solution of the non-inertial Langevian equation of the system and calculating the non-linear response of the detector to a large ac bias current in the presence of noise.