The current status of low-noise THz mixers based on SIS junctions

被引：5
|
作者：
Jackson, BD
Klapwijk, TM
机构：
[1] Space Res Org Netherlands, NL-9700 AV Groningen, Netherlands
[2] Delft Univ Technol, Dept Appl Phys, NL-2628 CJ Delft, Netherlands
[3] Delft Univ Technol, DIMES, NL-2628 CJ Delft, Netherlands
来源：
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2002年 / 372卷
关键词：
SIS mixers; NbTiN tuning circuits; AIN(x); tunnel barriers; THz mixers;
D O I：
10.1016/S0921-4534(02)00702-5
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
SIS mixers based on Nb technology provide low-noise performance below 700 GHz, but their sensitivity drops at higher frequencies due to RF losses in Nb tuning circuits. However, the development of NbTiN- and Al-based tuning circuits enables a significant reduction in these losses, as does the development of high-quality, high current-density AlNx tunnel barriers. The integration of these technologies will yield low-noise THz mixers for the Heterodyne Instrument for the Far-Infrared, currently being built for ESA's Herschel Space Observatory. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：368 / 373
页数：6
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