Antenna Coupled MKID Performance Verification at 850 GHz for Large Format Astrophysics Arrays
Antenna Coupled MKID Performance Verification at 850 GHz for Large Format Astrophysics Arrays
复制标题
大型天体物理阵列在 850 GHz 下的天线耦合 MKID 性能验证
DOI：
10.1109/tthz.2017.2764378
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发表时间：
2018
影响因子：
3.2
通讯作者：
J. Baselmans
中科院分区：
文献类型：
--
作者：
L. Ferrari;Ozan Yurduseven;N. Llombart;S. Yates;J. Bueno;V. Murugesan;D. Thoen;A. Endo;A. Baryshev;J. Baselmans
下一代亚毫米成像仪器需要千像素的焦平面阵列填充背景有限的探测器。微波动态电感检测器（MKID）是一个国家的最先进的检测器，为未来的仪器，由于其固有的多路复用能力。MKID由耦合到用于读出的馈线的超导谐振器组成。在这里提出的设备中，辐射耦合是通过将MKID直接耦合到平面天线来实现的。天线被放置在一个扩展的半球形透镜的焦点，以增加填充因子，并有效地匹配到前光学。在本文中，我们提出的设计和光学性能的MKID优化操作在100 GHz频段约850 GHz。我们已经测量了耦合效率，频率响应和波束方向图，并将这些结果与模拟性能进行比较。我们得到了一个很好的协议之间的测量和模拟的光束模式，频率响应，和绝对耦合效率之间的热校准源和在检测器中吸收的功率。此外，我们证明，天线耦合MKID提供背景有限的辐射检测下降到100 aW的检测器中吸收的功率。
Next generation sub-mm imaging instruments require kilo-pixel focal plane arrays filled with background limited detectors. Microwave kinetic inductance detectors (MKIDs) are a state-of-the-art detector for future instruments due to their inherent multiplexing capabilities. An MKID consists of a superconducting resonator coupled to a feed-line that is used for readout. In the device presented here radiation coupling is achieved by coupling the MKID directly to a planar antenna. The antenna is placed in the focus of an extended hemispherical lens to increase the filling factor and to match efficiently to fore optics. In this paper, we present the design and the optical performance of MKIDs optimized for operation in a 100-GHz band around 850 GHz. We have measured the coupling efficiency, frequency response, and beam patterns and compare those results to simulated performance. We obtain an excellent agreement between the measured and simulated beam pattern, frequency response, and absolute coupling efficiency between a thermal calibration source and the power absorbed in the detector. Additionally, we demonstrate that antenna coupled MKIDs offer background limited radiation detection down to ∼100 aW of power absorbed in the detector.
影响因子：
3.6
作者：
T. Guruswamy;D. Goldie;S. Withington
通讯作者：
T. Guruswamy;D. Goldie;S. Withington