28 May 2014 Cryogenic SiGe integrated circuits for superconducting nanowire single photon detector readout
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Abstract
There is a growing interest in developing systems employing large arrays of SNSPDs. To make such instruments practical, it is desirable to perform signal processing before transporting the detector outputs to room temperature. We present a cryogenic eight-channel pixel combiner circuit designed to amplify, digitize, edge detect, and combine the output signals of an array of eight SNSPDs. The circuit has been fabricated and measurement results agree well with expectation. The paper will conclude with a summary of ongoing work and future directions.
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Joseph C. Bardin, Prasana Ravindran, Su-Wei Chang, Charif Mohamed, Raghavan Kumar, Jeffrey A. Stern, Matthew D. Shaw, Damon Russell, Francesco Marsili, Giovanni Resta, William H. Farr, "Cryogenic SiGe integrated circuits for superconducting nanowire single photon detector readout", Proc. SPIE 9114, Advanced Photon Counting Techniques VIII, 911404 (28 May 2014); doi: 10.1117/12.2053200; https://doi.org/10.1117/12.2053200
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