Fundamental physics and practical realization of mid-infrared photodetectors

Anthony Krier; Parthasarathi Chakrabarti; Honghai Gao; Y. Mao; Xing-Liang Huang; Victor V. Sherstnev

doi:10.1117/12.555684

22 October 2004 Fundamental physics and practical realization of mid-infrared photodetectors

Anthony Krier, Parthasarathi Chakrabarti, Honghai Gao, Y. Mao, Xing-Liang Huang, Victor V. Sherstnev

Proceedings Volume 5564, Infrared Detector Materials and Devices; (2004) https://doi.org/10.1117/12.555684
Event: Optical Science and Technology, the SPIE 49th Annual Meeting, 2004, Denver, Colorado, United States

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 In_0.97Ga_0.03As and InAs_0.89Sb_0.11 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.

Citation Download Citation

Anthony Krier, Parthasarathi Chakrabarti, Honghai Gao, Y. Mao, Xing-Liang Huang, and Victor V. Sherstnev "Fundamental physics and practical realization of mid-infrared photodetectors", Proc. SPIE 5564, Infrared Detector Materials and Devices, (22 October 2004); https://doi.org/10.1117/12.555684

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