Antenna-coupled thermal kinetic inductance detectors for ground-based millimeter-wave cosmology
Antenna-coupled thermal kinetic inductance detectors for ground-based millimeter-wave cosmology
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用于地基毫米波宇宙学的天线耦合热动感探测器
DOI：
10.1117/12.2563373
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发表时间：
2020
期刊：
影响因子：
--
通讯作者：
O'Brient, Roger
中科院分区：
文献类型：
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作者：
Wandui, Albert;Bock, James J.;Frez, Clifford F.;Hunacek, Jonathon;Minutolo, Lorenzo;Nguyen, Hien;Steinbach, Bryan;Turner, Anthony D.;Zmuidzinas, Jonas;O'Brient, Roger
我们设计了一种用于150 GHz波段宇宙微波背景（CMB）观测的天线耦合热动力学电感探测器（TKIDs）。研究CMB的下一代望远镜将需要在低温焦平面上安装大型探测器阵列，以增加集成和读出复杂性为代价实现高灵敏度。TKIDs的光子限制噪声性能可与传统的辐射热计相媲美，该辐射热计采用射频（RF）多路复用架构，可实现所需的大检测器计数。我们对在150 GHz中心波段观测宇宙微波背景的tkid进行了表征，并讨论了其光学性能。这些设备是在南极的焦平面上部署512个设备的凯克阵列相机的关键一步。
We present our design for antenna-coupled thermal kinetic inductance detectors (TKIDs) designed for Cosmic Microwave Background (CMB) observations in the 150 GHz band. The next generation of telescopes studying the CMB will require large arrays of detectors on cryogenic focal planes to achieve high sensitivity at the cost of increased integration and readout complexity. TKIDs have demonstrated photon-limited noise performance comparable to traditional bolometers with a radiofrequency (RF) multiplexing architecture that enables the large detector counts needed. We characterize TKIDs fabricated for observing the CMB in a frequency band centered at 150 GHz and discuss the optical performance. These devices are a critical step towards fielding a Keck Array camera with 512 devices on the focal plane at the South Pole.