Optimization of cold resonant filters for frequency domain multiplexed readout of POLARBEAR-2

K Hattori ,Darcy Barron,Aritoki Suzuki,T De Haan ,Brian Keating ,M Dobbs ,W L Holzapfel ,G Smecher ,H Morii ,J Montgomery ,N L Harrington ,Y Akiba ,Y Hori ,I Shirley ,Michael J Myers ,Adrian T Lee ,K Arnold ,M Hasegawa ,K M Rotermund ,M Hazumi ,A N Bender ,N Stebor ,T Tomaru

doi:10.1117/12.2057045

Optimization of cold resonant filters for frequency domain multiplexed readout of POLARBEAR-2

K Hattori , Darcy Barron + Show 21 more

https://doi.org/10.1117/12.2057045

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Publication Date: Aug 19, 2014

Citations: 6

Affiliation: High Energy Accelerator Research Organization, University of California, San Diego, University of California, Berkeley, McGill University, Three-Speed Logic (Canada), The Graduate University for Advanced Studies, SOKENDAI, Dalhousie University

#Cosmic Microwave Background #Transition Edge Sensor + Show 8 more

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Abstract

For the next generation of Cosmic Microwave Background (CMB) experiments, kilopixel arrays of Transition Edge Sensor (TES) bolometers are necessary to achieve the required sensitivity and their science goals. We are developing read-out electronics for POLARBEAR-2 CMB experiment, which multiplexes 32-TES bolometers through a single superconducting quantum interface device (SQUID). To increase both the bandwidth of the SQUID electronics and the multiplexing factor, we are modifying cold wiring and developing LC filters, and a low-inductance superconducting cable. Using these components, we will show frequency domain multiplexing up to 3 MHz.

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