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Proceedings Paper

Quantum structure optimization for infrared detection
Author(s): Ning Li; Hong-lou Zhen; Wang-ping Wang; Jian Wang; Xiao-shuang Chen; Zhi-feng Li; Wen-xin Wang; Hong Chen; Feng-qi Liu; Wei Lu
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Paper Abstract

Quantum structure has been optimized for the excited state confinement to improve the detector performance of quantum wells infrared detector (QWIP) and quantum dots infrared detector (QDIP). By the energy band engineering, the quantum states in quantum structure are easier to be manipulated than the case in interband transition of bulk material. Moreover, the confined state in resonant tunneling diode has shown its function to amplify the photo-excited carrier in the order of 107, which imply that a new high sensitivity infrared detector will be resulted from the integration of such amplification quantum structure with the quantum inter-subband transition structure. The optimized quantum structure has been used for the QDIP linear array and very long wavelength QWIP linear array in the format of 256×1. The response peak for QDIP is at 6μm. Two type of QWIP is developed with the response peak at 12μm and 15μm, respectively.

Paper Details

Date Published: 5 August 2009
PDF: 8 pages
Proc. SPIE 7383, International Symposium on Photoelectronic Detection and Imaging 2009: Advances in Infrared Imaging and Applications, 738306 (5 August 2009); doi: 10.1117/12.839635
Show Author Affiliations
Ning Li, Shanghai Institute of Technical Physics (China)
Hong-lou Zhen, Shanghai Institute of Technical Physics (China)
Wang-ping Wang, Shanghai Institute of Technical Physics (China)
Jian Wang, Shanghai Institute of Technical Physics (China)
Xiao-shuang Chen, Shanghai Institute of Technical Physics (China)
Zhi-feng Li, Shanghai Institute of Technical Physics (China)
Wen-xin Wang, Institute of Physics (China)
Hong Chen, Institute of Physics (China)
Feng-qi Liu, Institute of Semiconductors (China)
Wei Lu, Shanghai Institute of Technical Physics (China)


Published in SPIE Proceedings Vol. 7383:
International Symposium on Photoelectronic Detection and Imaging 2009: Advances in Infrared Imaging and Applications
Jeffery Puschell; Hai-mei Gong; Yi Cai; Jin Lu; Jin-dong Fei, Editor(s)

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