High resistance narrow band quantum cascade photodetectors

被引:74
作者
Gendron, L
Koeniguer, C
Berger, V
Marcadet, X
机构
[1] Thales Res & Technol, F-91404 Orsay, France
[2] Univ Paris 07, F-75251 Paris, France
[3] Alcatel Thales 3 5 Lab, F-91404 Orsay, France
关键词
D O I
10.1063/1.1884257
中图分类号
O59 [应用物理学];
学科分类号
摘要
A high resistance narrow band quantum cascade photodetector (QCD) is presented. Leakage current has been suppressed, increasing the resistivity, thanks to a design in which coupling barriers have been thickened. Useless cross transitions have been eliminated finally leading to a Johnson noise detectivity at 50 K comparable to quantum well infrared photodetectors. Because they work with no dark current, QCDs are very promising for small pixel and large focal plane array applications. (C) 2005 American Institute of Physics.
引用
收藏
页码:1 / 3
页数:3
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