QUANTUM DETECTORS IN SUPERCONDUCTING YBCO

被引：2

作者：

BLUZER, N ^{[1
]}

FORRESTER, MG ^{[1
]}

机构：

[1] WESTINGHOUSE SCI & TECHNOL CTR,PITTSBURGH,PA 15235

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 1995年 / 5卷 / 02期

关键词：

D O I：

10.1109/77.403118

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A superconducting quantum detector structure in YBCO is described with a directly coupled SQUID read out circuit. The detector geometry is optimized for maximum photoresponse with the use of a serpentine pattern. The serpentine pattern reduces quasiparticle diffusion effects and maximizes the photoinduced changes in the kinetic inductance. The operation of this sensor is analyzed in terms of geometry and quasiparticle lifetime to obtain expressions for the signal and noise of this detector. The background limited infrared performance of this detector is calculated to be about 5x10(-17) NEP. The photoresponse is expected to be limited by the superconducting energy gap, about 30-40 mu m.

引用

页码：2583 / 2586

页数：4

共 12 条

[1]

BEDNORZ JG, 1988, Z PHYS B, V64, P189

[2] SUPERCONDUCTING QUANTUM DETECTORS IN YBCO [J].