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19 July 2016 Polarization sensitive Multi-Chroic MKIDs
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Abstract
We report on the development of scalable prototype microwave kinetic inductance detector (MKID) arrays tai- lored for future multi-kilo-pixel experiments that are designed to simultaneously characterize the polarization properties of both the cosmic microwave background (CMB) and Galactic dust emission. These modular arrays are composed of horn-coupled, polarization-sensitive MKIDs, and each pixel has four detectors: two polariza- tions in two spectral bands between 125 and 280 GHz. A horn is used to feed each array element, and a planar orthomode transducer, composed of two waveguide probe pairs, separates the incoming light into two linear po- larizations. Diplexers composed of resonant-stub band-pass filters separate the radiation into 125 to 170 GHz and 190 to 280 GHz pass bands. The millimeter-wave power is ultimately coupled to a hybrid co-planar waveguide microwave kinetic inductance detector using a novel, broadband circuit developed by our collaboration. Elec- tromagnetic simulations show the expected absorption efficiency of the detector is approximately 90%. Array fabrication will begin in the summer of 2016.
© (2016) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Bradley R. Johnson, Daniel Flanigan, Maximilian H. Abitbol, Peter A. R. Ade, Sean Bryan, Hsiao-Mei Cho, Rahul Datta, Peter Day, Simon Doyle, Kent Irwin, Glenn Jones, Sarah Kernasovskiy, Dale Li, Philip Mauskopf, Heather McCarrick, Jeff McMahon, Amber Miller, Giampaolo Pisano, Yanru Song, Harshad Surdi, and Carole Tucker "Polarization sensitive Multi-Chroic MKIDs", Proc. SPIE 9914, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VIII, 99140X (19 July 2016); https://doi.org/10.1117/12.2233243
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