The kinetic inductance effect is strongly nonlinear with applied current in NbTiN, TiN and NbN thin films. This can be utilized to realize novel devices. We present results from transmission lines made with these materials, where DC (current) control is used to modulate the phase velocity thereby enabling on-chip spectrometers. Utility of such compact spectrometers is discussed, along with their natural connection with parametric amplifiers.

中文翻译：

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超导片上傅里叶变换光谱仪

在 NbTiN、TiN 和 NbN 薄膜中，动态电感效应与施加的电流呈强非线性关系。这可用于实现新颖的设备。我们展示了由这些材料制成的传输线的结果，其中 DC（电流）控制用于调制相速度，从而启用片上光谱仪。讨论了这种紧凑型光谱仪的实用性，以及它们与参量放大器的自然联系。