Quantum Detection Applications of NanoSQUIDs fabricated by Focussed Ion Beam
Quantum Detection Applications of NanoSQUIDs fabricated by Focussed Ion Beam
复制标题
聚焦离子束制备的 NanoSQUID 的量子检测应用
DOI：
--
复制
发表时间：
2011
期刊：
影响因子：
--
通讯作者：
L. Hao
中科院分区：
文献类型：
--
作者：
L. Hao
量子计量学和纳米科学日益增长的需求正在推动各种物理应用对单粒子探测能力的需求，包括QIP，单光子探测，NEMS，纳米磁学和自旋电子学。NanoSQUID代表了一种古老但令人兴奋的超导技术的新表现，它解决了其中的一些要求。我们将描述一个简单的方法来制造铌微桥弱链接，可用于纳米SQUID。这些器件已经证明了非常低的噪声，即使在4.2 K以上的工作温度下。我们还将描述使用这种技术的能量分辨单光子检测，纳米粒子自旋检测和NEMS谐振器读出的原型设备的性能。
The increasing demands of quantum metrology and nanoscience are driving the requirements for single particle detection capability across a wide variety of physics applications, including QIP, single photon detection, NEMS, nanomagnetism and spintronics. NanoSQUIDs represent a new manifestation of an old but exciting superconducting technology which addresses some of these requirements. We will describe a straightforward approach to fabricating Nb microbridge weak-links which may be used in nanoscale SQUIDs. These devices have demonstrated very low noise, even at operating temperatures above 4.2 K. We will also describe the performance of prototype devices made using this technique for energy resolving single photon detection, nanoparticle spin detection and NEMS resonator readout.