Use of quantum-point-contact high-electron-mobility-transistors for time domain multiplexing of large arrays of high impedance low temperature bolometers

被引:5
作者
Yates, S. J. C.
Benoit, A.
Gremion, E.
Ulysse, Ch.
Camus, Ph.
Cavanna, A.
Durand, T.
Etienne, B.
Gennser, U.
Hoffmann, C.
Leclercq, S.
Jin, Y.
机构
[1] CNRS, CRTBT, F-38042 Grenoble 9, France
[2] CNRS, LPN, F-91461 Marcoussis, France
[3] Univ Grenoble 1, Grenoble, France
关键词
D O I
10.1063/1.2712912
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
The use of a multiplexing readout for an array of bolometers simplifies the electronics and wiring, so making the readout of large arrays of bolometers (>100) feasible. Here we describe a time domain multiplexing technique and its performance based on the use of quantum-point-contact high-electron-mobility-transistors as low temperature (to similar to 100 mK) switches for measuring high impedance (5...70 M Omega) resistances and sensors. The presented system is well matched to ground based millimetric astronomy demands. (c) 2007 American Institute of Physics.
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页数:6
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