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Fingerprints of spa...
Fingerprints of spatial charge transfer in Quantum Cascade Lasers
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- Nelander, Rikard (author)
- Lund 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
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- Wacker, Andreas (author)
- Lund 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
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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. (author)
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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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(creator_code:org_t)
- AIP Publishing, 2007
- 2007
- English.
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In: Journal of Applied Physics. - : AIP Publishing. - 0021-8979 .- 1089-7550. ; 102, s. 1-113104
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Abstract
Subject headings
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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.
Subject headings
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Publication and Content Type
- art (subject category)
- ref (subject category)
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- By the author/editor
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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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show more...
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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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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Condensed Matter ...
- Articles in the publication
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Journal of Appli ...
- By the university
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Lund University