磁通激励超导开关原理与技术进展  

Principle andTechnical Progress of Flux-actuated Superconducting Switches

作　　者：王仕建 高鹤 李劲劲[1] 王雪深[1] WANG Shi-jian;GAO He;LI Jin-jin;WANG Xue-shen(Center for Advanced Measurement Science,National Institute of Metrology,Beijing 102200,China)

机构地区：[1]中国计量科学研究院前沿计量科学中心,北京102200

出　　处：《计量学报》2023年第4期534-539,共6页Acta Metrologica Sinica

基　　金：中国计量科学研究院基本科研业务费(31-AKYZD2012,AKYZZ2124)。

摘　　要：超导转变边沿探测器(TES)阵列在光子计量、光量子通讯、X射线辐射和宇宙微波探测等领域的大规模集成应用,需使用集成了基于约瑟夫森结的磁通激励超导开关的时域复用超导量子干涉器件(SQUID)读出系统。磁通激励超导开关的引入大大提高了TES集成度,提高了SQUID系统复用比,是TES信号读出的关键器件。介绍了磁通激励超导开关的工作原理、关键性能及设计原则、超导开关在时域复用SQUID读出系统中的应用现状等,为我国在超导开关方面的研究提供技术支持。Superconductivity transition edge sensor(TES)has been widely used in photon metrology,optical quantum communication,X-ray radiation,cosmic microwave detection and other detection fields.For the large-scale integration TES application,the time-domain multiplexing(TDM)superconducting quantum interference devices(SQUIDs)are used to realize the signal readout.Flux-actuated superconducting switches based on Josephson junctions are the key factors for multiplexing readout system.Superconducting switches improve the multiplexing factor of the TDM system,and increase the integration level of TES.The principle,characteristic parameters,the design principles,and the application status in the TDM system of flux-actuated superconducting switches are introduced.This will provide technical support for the research of superconducting switches.

关 键 词：计量学 磁通激励超导开关 超导量子干涉器件 

分 类 号：TB96[机械工程—光学工程] TB97[一般工业技术—计量学]