标题： 热动力学电感探测器中的强负电热反馈 显示英文标题

标题： Strong Negative Electrothermal Feedback in Thermal Kinetic Inductance Detectors

摘要： 我们展示了强负电热反馈加速并线性化热动力学电感探测器（TKID）的响应。 TKIDs 是一种高可多路复用的过渡边缘传感器替代方案，通过超导微谐振器测温计的温度相关谐振频率测量功率。 在高读出探测功率和探测频率偏离 TKID 谐振频率的情况下，我们通过测量稳定时间的减少观察到电热反馈环路增益高达$\mathcal L$ $\approx$ 16。 我们还表明，在入射功率的 38% 范围内，探测器响应没有可检测的非线性，并且等效噪声功率低于设计光子噪声。 显示英文摘要

摘要： We demonstrate strong negative electrothermal feedback accelerating and linearizing the response of a thermal kinetic inductance detector (TKID). TKIDs are a proposed highly multiplexable replacement to transition-edge sensors and measure power through the temperature-dependent resonant frequency of a superconducting microresonator bolometer. At high readout probe power and probe frequency detuned from the TKID resonant frequency, we observe electrothermal feedback loop gain up to $\mathcal L$ $\approx$ 16 through measuring the reduction of settling time. We also show that the detector response has no detectable non-linearity over a 38% range of incident power and that the noise-equivalent power is below the design photon noise.