19 July 2016 Polarization sensitive Multi-Chroic MKIDs
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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.
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Bradley R. Johnson, Bradley R. Johnson, Daniel Flanigan, Daniel Flanigan, Maximilian H. Abitbol, Maximilian H. Abitbol, Peter A. R. Ade, Peter A. R. Ade, Sean Bryan, Sean Bryan, Hsiao-Mei Cho, Hsiao-Mei Cho, Rahul Datta, Rahul Datta, Peter Day, Peter Day, Simon Doyle, Simon Doyle, Kent Irwin, Kent Irwin, Glenn Jones, Glenn Jones, Sarah Kernasovskiy, Sarah Kernasovskiy, Dale Li, Dale Li, Philip Mauskopf, Philip Mauskopf, Heather McCarrick, Heather McCarrick, Jeff McMahon, Jeff McMahon, Amber Miller, Amber Miller, Giampaolo Pisano, Giampaolo Pisano, Yanru Song, Yanru Song, Harshad Surdi, Harshad Surdi, Carole Tucker, 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); doi: 10.1117/12.2233243; https://doi.org/10.1117/12.2233243

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