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Mid‐infrared detectors in the 3–5 &mgr;m band using bound to continuum state absorption in InGaAs/InAlAs multiquantum well structures

 

作者: G. Hasnain,   B. F. Levine,   D. L. Sivco,   A. Y. Cho,  

 

期刊: Applied Physics Letters  （AIP Available online 1990）
卷期: Volume 56, issue 8  

页码: 770-772

 

ISSN:0003-6951

 

年代: 1990

 

DOI:10.1063/1.103186

 

出版商: AIP

 

数据来源: AIP

 

摘要:

Medium wavelength infrared (MWIR) detectors in the 3–5 &mgr;m band are demonstrated using bound to continuum state intersubband absorption in lattice‐matched InGaAs/InAlAs multiquantum well (MQW) structures. Photodetectors with responsivity peaked at 4 &mgr;m wavelength showed low dark current giving a background‐limited detectivityD@B|BL=2.3×1010cm(Hz)1/2/W at temperatures up to 120 K.

 

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