Superconducting multiplexer for arrays of transition edge sensors

作者：James A. Chervenak, K. D. Irwin, Erich N. Grossman, John M. Martinis, C. D. Reintsema, M. E. Huber · 发表于：Applied Physics Letters · 年份：1999 · DOI：10.1063/1.123255 · 被引用次数：283 · 研究领域：Superconducting and THz Device Technology、Microwave Engineering and Waveguides、Physics of Superconductivity and Magnetism

We report the design and testing of an analog superconducting time-division multiplexer to instrument large format arrays of low-temperature bolometers and microcalorimeters. The circuit is designed to multiplex an array of superconducting quantum interference devices, thereby simplifying wiring and room temperature electronics. We have fabricated a prototype 8×1 multiplexer chip and show a switching rate of 1 MHz. We calculate that a 32×32 array or larger is feasible.