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Tuning and tailoring of broadband quantum-well infrared photodetector responsivity spectrum.

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dc.contributor.author Bandara, S. V.
dc.contributor.author Gunapala, S. D.
dc.contributor.author Liu, J. K.
dc.contributor.author Rafol, S. B.
dc.contributor.author Hill, C. J.
dc.contributor.author Ting, D. Z.-Y.
dc.contributor.author Mumolo, J. M.
dc.contributor.author Trinh, T. Q.
dc.contributor.author Fastenau, J. M.
dc.contributor.author Liu, A. W. K.
dc.date.accessioned 2006-05-04T18:08:44Z
dc.date.available 2006-05-04T18:08:44Z
dc.date.issued 2005-04-11
dc.identifier.citation Applied Physics Letters 86, 151104 en
dc.identifier.clearanceno 04-3731
dc.identifier.uri http://hdl.handle.net/2014/39229
dc.description.abstract The spectral response of quantum-well infrared photodetectors (QWIPs) based on the III-V material system are tailorable to narrow or broad bandwidths within mid- and long-wavelength infrared bands. Typical broad-band QWIPs show considerable spectral shape change with bias voltage, particularly near the cut-off wavelength region. Two alternatives to the typical broadband QWIP design have been demonstrated. These designs consist of two multiquantum-well (QW) stacks or alternatively placed QWs and produce nearly fixed spectrums within the operating bias voltages. Flexibility in many design parameters of these detectors allows for tuning and tailoring the spectral shape according to application requirements, specifically for spectral imaging instruments en
dc.description.sponsorship NASA/JPL en
dc.format.extent 67851 bytes
dc.format.mimetype application/pdf
dc.language.iso en_US en
dc.publisher American Institute of Physics en
dc.subject aluminium compounds en
dc.subject gallium arsenide en
dc.subject III-V semiconductors en
dc.subject semiconductor quantum wells en
dc.subject quantum well devices en
dc.subject photodetectors en
dc.subject infrared detectors en
dc.subject optical tuning en
dc.title Tuning and tailoring of broadband quantum-well infrared photodetector responsivity spectrum. en
dc.type Article en


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