Responsivity of quantum well infrared photodetectors at terahertz detection wavelengths

M. A. Gadir; P. Harrison; R. A. Soref

doi:10.1063/1.1467951

Responsivity of quantum well infrared photodetectors at terahertz detection wavelengths

M. A. Gadir, P. Harrison, R. A. Soref

Research output: Contribution to journal › Article › peer-review

20 Citations (Scopus)

Abstract

A first-principles model of the photocurrent in quantum well infrared photodetectors (QWIPs) is derived. The model examines the responsivity, carrier capture probability and quantum efficiency. It is found that the QWIP sensitivity reaches a plateau below the 10 μm detection wavelength and remains nearly constant from 10 to 50 μm.

Original language	English
Pages (from-to)	5820-5825
Number of pages	6
Journal	Journal of Applied Physics
Volume	91
Issue number	9
Early online date	17 Apr 2002
DOIs	https://doi.org/10.1063/1.1467951
Publication status	Published - 1 May 2002
Externally published	Yes

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title = "Responsivity of quantum well infrared photodetectors at terahertz detection wavelengths",

abstract = "A first-principles model of the photocurrent in quantum well infrared photodetectors (QWIPs) is derived. The model examines the responsivity, carrier capture probability and quantum efficiency. It is found that the QWIP sensitivity reaches a plateau below the 10 μm detection wavelength and remains nearly constant from 10 to 50 μm.",

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AU - Soref, R. A.

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AB - A first-principles model of the photocurrent in quantum well infrared photodetectors (QWIPs) is derived. The model examines the responsivity, carrier capture probability and quantum efficiency. It is found that the QWIP sensitivity reaches a plateau below the 10 μm detection wavelength and remains nearly constant from 10 to 50 μm.

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KW - Physics

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DO - 10.1063/1.1467951

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JO - Journal of Applied Physics

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Responsivity of quantum well infrared photodetectors at terahertz detection wavelengths

Abstract

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