Demonstration of a multiplexer of dissipationless superconducting quantum interference devices

被引:133
作者
Mates, J. A. B. [1 ]
Hilton, G. C. [1 ]
Irwin, K. D. [1 ]
Vale, L. R. [1 ]
Lehnert, K. W. [2 ,3 ]
机构
[1] Natl Inst Stand & Technol, Boulder, CO 80305 USA
[2] Univ Colorado, Boulder, CO 80309 USA
[3] Natl Inst Stand & Technol, JILA, Boulder, CO 80309 USA
基金
美国国家航空航天局;
关键词
D O I
10.1063/1.2803852
中图分类号
O59 [应用物理学];
学科分类号
摘要
We report on the development of a microwave superconducting quantum interference device (SQUID) multiplexer to read out arrays of low-temperature detectors. In this frequency-division multiplexer, superconducting resonators with different frequencies couple to a common transmission line and each resonator couples to a different dissipationless SQUID. We demonstrate multiple designs, with high-Q values (4100-18 000), noise as low as 0.17 mu Phi(0)/root Hz, and a naturally linear readout scheme based on flux modulation. This multiplexing approach is compatible with superconducting transition-edge sensors and magnetic calorimeters and is capable of multiplexing more than a thousand detectors in a single transmission line. (c) 2008 American Institute of Physics.
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页数:3
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