Short wavelength (4 μm) quantum cascade detector based on strain compensated InGaAs/InAlAs

被引：32
|
作者：
Giorgetta, F. R. [1 ]
Baumann, E. [1 ]
Theron, R. [1 ]
Pellaton, M. L. [1 ]
Hofstetter, D. [1 ]
Fischer, M. [2 ]
Faist, J. [2 ]
机构：
[1] Univ Neuchatel, CH-2000 Neuchatel, Switzerland
[2] ETH, CH-8092 Zurich, Switzerland
来源：
APPLIED PHYSICS LETTERS | 2008年 / 92卷 / 12期
关键词：
D O I：
10.1063/1.2902301
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We report on a quantum cascade detector based on nearly strain compensated InGaAs/InAlAs pseudomorphically grown on InP substrate and detecting light at short wavelengths around 4 mu m. The background limited infrared performance (BLIP) condition is met at a temperature of 108 K with a high detectivity of D-BLIP(*) = 1.2 x 10(11) Jones. (C) 2008 American Institute of Physics.
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页数：3
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