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Fundamental physics and practical realisation of mid-infrared photodetectors.

Krier, Anthony and Chakrabarti, Parthasarathi and Gao, Honghai and Mao, Y. and Huang, Xing-Liang and Sherstnev, Victor V. (2004) Fundamental physics and practical realisation of mid-infrared photodetectors. Proceedings- Spie the International Society for Optical Engineering, 5564. pp. 92-104. ISSN 0277-786X

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Abstract

The fabrication and characterization of heterojunction phtodiodes for room temperature operation in the mid-infrared (2-5 µm) spectral range is described. Liquid phase epitaxy was employed to fabricate two different devices containing In0.97Ga0.03As and InAs0.89Sb0.11 active regions appropriate for phtodetection at 3.3 µm and 4.6 µm, corresponding to the absorption bands of methane and carbon monoxide. Basic detector characteristics have been measured and were found to compare favourbly with other available detectors in this wavelength range. A simple analystical model was developed to help design and study the corresponding device physics governing the performance of the detectors and was found to give good agreement with the experimentally measured values.

Item Type: Article
Journal or Publication Title: Proceedings- Spie the International Society for Optical Engineering
Subjects: Q Science > QC Physics
Departments: Faculty of Science and Technology > Physics
ID Code: 23886
Deposited By: ep_ss_importer
Deposited On: 23 Feb 2009 10:59
Refereed?: Yes
Published?: Published
Last Modified: 09 Apr 2014 20:27
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/23886

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