A Stochastic SPICE Model for Superconducting Nanowire Single Photon Detectors and Other Nanowire Devices
A Stochastic SPICE Model for Superconducting Nanowire Single Photon Detectors and Other Nanowire Devices
复制标题
超导纳米线单光子探测器和其他纳米线器件的随机 SPICE 模型
DOI：
10.1109/tasc.2019.2892049
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发表时间：
2019
影响因子：
1.8
通讯作者：
S. Nam
中科院分区：
文献类型：
--
作者：
A. McCaughan;D. M. Oh;S. Nam
超导纳米线器件，如超导纳米线单光子探测器（SNSPD）或纳米冷冻管，具有依赖于流过它们的电流的时间依赖性随机性。在对由多个此类器件（例如SNSPD阵列）组成的复杂电路进行建模时，包含这种随机性的能力对于预测电路中不必要的影响和相互作用非常重要。我们提出了一个修改的模型所描述的Berggren等人。其允许将此随机性包含到纳米线装置模型中。然后，我们使用硅化钨SNSPD实验验证模型，并表明，修改后的模型复制的物理设备的随机性。
Superconducting nanowire devices, such as the superconducting nanowire single photon detector (SNSPD) or nanocryotron, have a time-dependent stochasticity that depends on the current flowing through them. When modeling complex circuits made of several such devices (for instance, an array of SNSPDs), the ability to include this randomness can be important for predicting unwanted effects and interactions within the circuit. We present a modification of the model described by Berggren et al. that allows for the inclusion of this stochasticity into the nanowire device model. We then verify the model against experiment using a tungsten silicide SNSPD, and show that the modified model replicates the stochasticity of the physical device.