TITLE

Theory of avalanche multiplication and excess noise in quantum-well infrared photodetectors

AUTHOR(S)
Schneider, Harald
PUB. DATE
June 2003
SOURCE
Applied Physics Letters;6/16/2003, Vol. 82 Issue 24, p4376
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A theoretical treatment of the noise current of quantum-well infrared photodetectors in the presence of avalanche multiplication is presented. Avalanche multiplication results in a characteristic excess noise which is expressed as a function of the avalanche multiplication factor and the capture probability. The multiplication factor can thus be determined from the photoconductive gain and the noise gain.
ACCESSION #
9987362

 

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