15 July 2010 MKID multicolor array status and results from DemoCam
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Abstract
We present the results of the latest multicolor Microwave Kinetic Inductance Detector (MKID) focal plane arrays in the submillimeter. The new detectors on the arrays are superconducting resonators which combine a coplanar waveguide section with an interdigitated capacitor, or IDC. To avoid out-of-band pickup by the capacitor, a stepped-impedance filter is used to prevent radiation from reaching the absorptive aluminum section of the resonator. These arrays are tested in the preliminary demonstration instrument, DemoCam, a precursor to the Multicolor Submillimeter Inductance Camera, MUSIC. We present laboratory results of the responsivity to light both in the laboratory and at the Caltech Submillimeter Observatory. We assess the performance of the detectors in filtering out-of-band radiation, and find the level of excess load and its effect on detector performance. We also look at the array design characteristics, and the implications for the optimization of sensitivities expected by MUSIC.
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James A. Schlaerth, James A. Schlaerth, Nicole G. Czakon, Nicole G. Czakon, Peter K. Day, Peter K. Day, Thomas P. Downes, Thomas P. Downes, Ran Duan, Ran Duan, Jiansong Gao, Jiansong Gao, Jason Glenn, Jason Glenn, Sunil R. Golwala, Sunil R. Golwala, Matthew I. Hollister, Matthew I. Hollister, Henry G. LeDuc, Henry G. LeDuc, Benjamin A. Mazin, Benjamin A. Mazin, Philip R. Maloney, Philip R. Maloney, Omid Noroozian, Omid Noroozian, Hien T. Nguyen, Hien T. Nguyen, Jack Sayers, Jack Sayers, Seth Siegel, Seth Siegel, John E. Vaillancourt, John E. Vaillancourt, Anastasios Vayonakis, Anastasios Vayonakis, Philip R. Wilson, Philip R. Wilson, Jonas Zmuidzinas, Jonas Zmuidzinas, } "MKID multicolor array status and results from DemoCam", Proc. SPIE 7741, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy V, 774109 (15 July 2010); doi: 10.1117/12.857688; https://doi.org/10.1117/12.857688
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