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Fingerprints of spa...
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Nelander, RikardLund University,Lunds universitet,Matematisk fysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Mathematical Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH
(author)
Fingerprints of spatial charge transfer in Quantum Cascade Lasers
- Article/chapterEnglish2007
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AIP Publishing,2007
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electronicrdacarrier
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LIBRIS-ID:oai:lup.lub.lu.se:ccdb9a8f-f0a4-4d69-acce-549277651db7
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https://lup.lub.lu.se/record/764060URI
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https://doi.org/10.1063/1.2817471DOI
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Language:English
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Summary in:English
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Subject category:art swepub-publicationtype
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Subject category:ref swepub-contenttype
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We show that mid-infrared transmission spectroscopy of a quantum cascade laser provides clear-cut information on changes in charge location at different bias. Theoretical simulations of the evolution of the gain/absorption spectrum for a lambda~7.4 µm InGaAs/AlInAs/InP quantum cascade laser have been compared with the experimental findings. Transfer of electrons between the ground states in the active region and the states in the injector goes hand in hand with a decrease of discrete intersubband absorption peaks and an increase of broad, high-energy absorption toward the continuum delocalized states above the barriers.
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Wacker, AndreasLund University,Lunds universitet,Matematisk fysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Mathematical Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)fysi-awa
(author)
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Pereira, M. F.
(author)
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Revin, D. G.
(author)
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Soulby, M. R.
(author)
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Wilson, L. R.
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Cockburn, J. W.
(author)
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Krysa, A. B.
(author)
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Roberts, J. S.
(author)
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Airey, R. J.
(author)
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Matematisk fysikFysiska institutionen
(creator_code:org_t)
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In:Journal of Applied Physics: AIP Publishing102, s. 1-1131040021-89791089-7550
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Nelander, Rikard
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Wacker, Andreas
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Pereira, M. F.
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Revin, D. G.
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Soulby, M. R.
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Wilson, L. R.
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Cockburn, J. W.
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Krysa, A. B.
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Roberts, J. S.
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Airey, R. J.
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- NATURAL SCIENCES
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NATURAL SCIENCES
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Lund University