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2003
Journal Article
Titel
Avalanche multiplication due to impact ionization in quantum-well infrared photodetectors: A quantitative approach
Alternative
Stoßionisations-bedingter Avalanche-Effekt in Quantentopf-Infrarotphotodetektoren: Ein quantitativer Ansatz
Abstract
We investigate the influence of avalanche multiplication by impact ionization on the photoconductive gain and the noise gain in quantum- well infrared photodetectors (QWIPs). A quantitative method is presented allowing the avalanche multiplication factor M and its field dependence to be determined from the measured photoconductive gain and noise gain. The approach is demonstrated using an In/sub 0.30/Ga/sub 0.70/As/GaAs QWIP.
Author(s)