Characterizing TES power noise for future single optical-phonon and infrared-photon detectors
Characterizing TES power noise for future single optical-phonon and infrared-photon detectors
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DOI：
10.1063/5.0011130
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发表时间：
2020-04
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通讯作者：
C. Fink;S. Watkins;T. Aramaki;P. Brink;S. Ganjam;B. Hines;M. Huber;N. Kurinsky;N. Kurinsky;R. Mahapatra;N. Mirabolfathi;W. Page;R. Partridge;M. Platt;M. Pyle;B. Sadoulet;B. Serfass;S. Zuber
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作者：
C. Fink;S. Watkins;T. Aramaki;P. Brink;S. Ganjam;B. Hines;M. Huber;N. Kurinsky;N. Kurinsky;R. Mahapatra;N. Mirabolfathi;W. Page;R. Partridge;M. Platt;M. Pyle;B. Sadoulet;B. Serfass;S. Zuber
在本文中，我们介绍了临界温度为40 mK的$100~\mu\mathrm{m}\times 400~\mu\mathrm{m} \times 40~\mathrm{nm}$钨(W)过渡边缘传感器（TES）的性能。该器件的测量噪声等效功率（NEP）为$1.5\times 10^{-18}\ \mathrm{W}/\sqrt{\mathrm{Hz}}$，带宽为$2.6$ kHz，表明狄拉克δ能量沉积的分辨率为$40\pm 5~\mathrm{meV}$ （rms）。该装置所展示的性能是开发用于低质量暗物质搜索的$\mathcal{O}(100)~\mathrm{meV}$阈值非热声子探测器的关键一步。
In this letter, we present the performance of a $100~\mu\mathrm{m}\times 400~\mu\mathrm{m} \times 40~\mathrm{nm}$ tungsten (W) Transition-Edge Sensor (TES) with a critical temperature of 40 mK. This device has a measured noise equivalent power (NEP) of $1.5\times 10^{-18}\ \mathrm{W}/\sqrt{\mathrm{Hz}}$, in a bandwidth of $2.6$ kHz, indicating a resolution for Dirac delta energy depositions of $40\pm 5~\mathrm{meV}$ (rms). The performance demonstrated by this device is a critical step towards developing a $\mathcal{O}(100)~\mathrm{meV}$ threshold athermal phonon detectors for low-mass dark matter searches.