15 μm Quantum Well Infrared Photodetector for thermometric imagery in cryogenic windtunnel

被引：5

作者：

Lhuillier, Emmanuel ^{[1
,2
]}

Ribet-Mohamed, Isabelle ^{[1
]}

Pere-Laperne, Nicolas ^{[1
]}

Tauvy, Michel ^{[1
]}

Deschamps, Joel ^{[1
]}

Nedelcu, Alexandu ^{[3
]}

Rosencher, Emmanuel ^{[1
]}

机构：

[1] Off Natl Etud & Rech Aerosp, Ctr Palaiseau, F-91761 Palaiseau, France

[2] Univ Paris Diderot, CNRS, Lab Mat & Phenomenes Quant, UMR 7162, F-75205 Paris 13, France

[3] Alcatel Thales III V Lab, F-91761 Palaiseau, France

来源：

INFRARED PHYSICS & TECHNOLOGY | 2010年 / 53卷 / 06期

关键词：

Infrared; Quantum well infrared photodetectors; Low flux scenario; Detector linearity; LOW-BACKGROUND APPLICATIONS; NONLINEARITY; DETECTORS; ARRAY; POWER;

D O I：

10.1016/j.infrared.2010.07.010

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Quantum Well Infrared Photodetector (QWIP) usually suffer from a too moderate quantum efficiency and too large dark current which is often announced as crippling for low flux applications. Despite this reputation we demonstrate the ability of QWIP for the low infrared photon flux detection. We present the characterization of a state of the art 14.5 mu m QWIP from Alcatel-Thales III-V Lab. We developed a predictive model of the performance of an infrared instrument for a given application. The considered scene is a cryogenic wind tunnel (ETW), where a specific Si:Ga camera is currently used. Using this simulation tool we demonstrate the QWIP ability to image a low temperature scene in this scenario. QWIP detector is able to operate at 30 K with a NETD as low as 130 mK. In comparison to the current detector, the operating temperature is 20 K higher. The use of a QWIP based camera would allow a huge simplification of the optical part. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：425 / 429

页数：5

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