Analysis of integrated quantum-well infrared photodetector and light-emitting diode for implementing pixelless imaging devices

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DOIResolve DOI: http://doi.org/10.1109/3.622632
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TypeArticle
Journal titleQuantum Electronics, IEEE Journal of
ISSN0018-9197
Volume33
Issue9
Pages15271531; # of pages: 5
Subjectanalytical device model; contrast transfer characteristic; contrast transfer ratio; e output current density; electron capture; electron capture parameter; image resolution; image sensors; incident image; infrared detectors; integrated quantum-well infrared photodetector; light-emitting diode; long-wavelength infrared images; multiple-quantum-well structure; nonuniform current; nonuniform distribution; photodetectors; pixelless imaging devices; semiconductor quantum wells; short-wavelength infrared images; transport processes
AbstractThe conversion of images into nonuniform distribution of the output current density in a multiple-quantum-well structure for an infrared pixelless imaging system is considered using an analytical device model. The nonuniform current, which reproduces the incident image, is converted back to a light-emitting diode emission image by the device considered here. The developed model takes into account transport processes responsible for the device operation. An explicit expression for the contrast transfer characteristic is derived as a function of the number of quantum wells (QWs) and the electron capture parameter. It is shown that the quality of the up-converted images (contrast and resolution) is improved with increasing number of QWs. The pixelless imaging devices under consideration can effectively convert long-wavelength infrared images into short-wavelength infrared or visible images with contrast transfer ratio close to unity
Publication date
AffiliationNational Research Council Canada; NRC Institute for Microstructural Sciences
Peer reviewedNo
Identifier10292731
NPARC number12328898
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Record identifiera30f85b1-e089-4f6b-b0ce-eed16f6d39fb
Record created2009-09-10
Record modified2016-05-09
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