A Millimeter and Submillimeter Kinetic Inductance Detector Camera
A Millimeter and Submillimeter Kinetic Inductance Detector Camera
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毫米级和亚毫米级动感电感探测器相机
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发表时间：
2008
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通讯作者：
J. Zmuidzinas
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作者：
J. Schlaerth;A. Vayonakis;P. Day;J. Glenn;Jiansong Gao;S. Golwala;Shwetank Kumar;H. Leduc;B. Mazin;J. Vaillancourt;J. Zmuidzinas
我们展示了加州理工学院亚毫米波天文台使用微波动力学电感探测器（MKID）（Day等人，Nature 425，817-821，[2003]）的演示相机的结果。焦平面由16个双色（240和350 GHz）像素组成。每个像素是一个相控阵列的缝隙偶极天线，其输出功率耦合到MKID通过在线颜色定义带通滤波器。原型软件定义无线电系统用于同时读取多达四个MKID。我们获得了木星，土星和G34.3的地图，并证明了在这两个波段的灵敏度分别约为1 Jy s1/2和10 Jy s1/2，由于低效率的光学系统受到探测器噪声的限制。我们预计，第二个工程运行在2008年与36元，4色阵列和优化的光学列车将在240，270，350和400 GHz的背景限制。我们正在建造一个全尺寸的MKID相机，具有576个四色空间像素，并通过扩展的软件定义无线电系统使用2304个MKID读数。
We present results from a demonstration camera using Microwave Kinetic Inductance Detectors (MKIDs) (Day et al. in Nature 425, 817–821, [2003]) at the Caltech Submillimeter Observatory. The focal plane consists of 16 two-color (240 and 350 GHz) pixels. Each pixel is a phased-array of slot dipole antenna whose output power is coupled to MKIDs via in-line color-defining bandpass filters. A prototype software-defined radio system was used to read out up to four MKIDs simultaneously. We obtained maps of Jupiter, Saturn, and G34.3 and demonstrated sensitivities of approximately 1 Jy s1/2 and 10 Jy s1/2 in the two bands, respectively, limited by detector noise due to a low-efficiency optical train. We anticipate that a second engineering run in 2008 with a 36-element, 4-color array and an optimized optical train will be background limited at 240, 270, 350, and 400 GHz. We are undertaking the construction of a full-size MKID camera with 576 four-color spatial pixels and using 2304 MKIDs readout by an expanded software-defined radio system.