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Proceedings Paper

Generation-recombination noise in multiple quantum well infrared photodetectors
Author(s): Maxim Ershov
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Paper Abstract

Generation-recombination noise in quantum well infrared photodetectors is considered theoretically. A numerical model and procedure for noise power calculation is proposed. It is shown that the transient response current due to extra charge generation from a QW is not described by a simple exponential model. Transient current is composed of fast and slow components. The autocorrelation coefficient is also non- exponential, having two components with different time scales and amplitudes. The noise power spectral density has a strong frequency dispersion at low frequencies, due to the modulation of the injection current from the emitter. Analytical model for non-equilibrium high-frequency noise is proposed.

Paper Details

Date Published: 7 April 1999
PDF: 8 pages
Proc. SPIE 3629, Photodetectors: Materials and Devices IV, (7 April 1999); doi: 10.1117/12.344548
Show Author Affiliations
Maxim Ershov, Georgia State Univ. (United States)

Published in SPIE Proceedings Vol. 3629:
Photodetectors: Materials and Devices IV
Gail J. Brown; Manijeh Razeghi, Editor(s)

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