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Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki, 2014, Volume 99, Issue 4, Pages 207–212
DOI: https://doi.org/10.7868/S0370274X1404002X (Mi jetpl3660) 		 
OPTICS AND NUCLEAR PHYSICS

Photoluminescence kinetics of multiperiod GaAs/AlGaAs structures with asymmetric barriers promising for making unipolar lasers

Yu. A. Aleshchenkoab, V. V. Kapaeva, M. V. Kochieva, Yu. G. Sadof'eva, V. A. Tsvetkova

a P. N. Lebedev Physical Institute, Russian Academy of Sciences, Moscow
b National Engineering Physics Institute "MEPhI", Moscow
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DOI: https://doi.org/10.7868/S0370274X1404002X
Abstract: Photoluminescence kinetics in multiperiod GaAs/AlGaAs quantum-well structures with asymmetric barrier heights has been investigated. Owing to the barrier asymmetry, a time constant of nonradiative recombination between the laser subbands of $9$ ps has been achieved, which is record long for unipolar lasers and exceeds the nonradiative relaxation time constant of the lower laser subband. This provides population inversion in the system. Efficient suppression of an unwanted cascade transition between the laser subbands via quasi-continuum states has been demonstrated.
Received: 29.01.2014
English version:
Journal of Experimental and Theoretical Physics Letters, 2014, Volume 99, Issue 4, Pages 182–186
DOI: https://doi.org/10.1134/S0021364014040043
Bibliographic databases:
Document Type: Article
Language: Russian
Citation: Yu. A. Aleshchenko, V. V. Kapaev, M. V. Kochiev, Yu. G. Sadof'ev, V. A. Tsvetkov, “Photoluminescence kinetics of multiperiod GaAs/AlGaAs structures with asymmetric barriers promising for making unipolar lasers”, Pis'ma v Zh. Èksper. Teoret. Fiz., 99:4 (2014), 207–212; JETP Letters, 99:4 (2014), 182–186
Citation in format AMSBIB
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\paper Photoluminescence kinetics of multiperiod GaAs/AlGaAs structures with asymmetric barriers promising for making unipolar lasers
\jour Pis'ma v Zh. \`Eksper. Teoret. Fiz.
\yr 2014
\vol 99
\issue 4
\pages 207--212
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