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arXiv · 1607.03796

Polarization Sensitive Multi-Chroic MKIDs

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·Phil Mauskopf·Heather McCarrick·Jeff McMahon·Amber Miller·Giampaolo Pisano·Yanru Song·Harshad Surdi·Carole Tucker
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Abstract

We report on the development of scalable prototype microwave kinetic inductance detector (MKID) arrays tailored 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 polarizations 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 polarizations. 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. Electromagnetic 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, 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, Phil Mauskopf, Heather McCarrick, Jeff McMahon, Amber Miller, Giampaolo Pisano, Yanru Song, Harshad Surdi, Carole Tucker. 2016-07-13. Polarization Sensitive Multi-Chroic MKIDs. https://doi.org/10.1117/12.2233243

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