Quantum well infrared photodetectors for low background applications

被引：19

作者：

Gunapala, SD ^{[1
]}

Bandara, SV ^{[1
]}

Singh, A ^{[1
]}

Liu, JK ^{[1
]}

Luong, EM ^{[1
]}

Mumolo, JM ^{[1
]}

McKelvey, MJ ^{[1
]}

机构：

[1] CALTECH, Jet Prop Lab, Ctr Space Microelect Technol, Pasadena, CA 91109 USA

来源：

INFRARED DETECTORS AND FOCAL PLANE ARRAYS V | 1998年 / 3379卷

关键词：

D O I：

10.1117/12.317590

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

High performance long-wavelength GaAs/AlxGa1-xAs quantum well infrared photodetectors for low background applications have been demonstrated. This is the first theoretical analysis of quantum well infrared photodetectors for low background applications and the detectivity D* of 6x10(13) cm root Hz/W has been achieved at T = 40 K with 2 x 10(9) photons/cm(2)/sec background. In addition, this paper describes the demonstration of mid-wavelength/long-wavelength dualband quantum well infrared photodetectors and long-wavelength/very long-wavelength dualband quantum well infrared photodetectors in 4-26 mu m wavelength region.

引用

页码：225 / 234

页数：10