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Responsivity of quantum well infrared photodetectors at terahertz detection wavelengths

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3 Author(s)
Gadir, M.A. ; IMP, School of Electronic and Electrical Engineering, The University of Leeds, LS2 9JT United Kingdom ; Harrison, P. ; Soref, R.A.

Your organization might have access to this article on the publisher's site. To check, click on this link:http://dx.doi.org/+10.1063/1.1467951 

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. © 2002 American Institute of Physics.

Published in:

Journal of Applied Physics  (Volume:91 ,  Issue: 9 )

Date of Publication:

May 2002

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