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Intersubband absorption of light in heterostructures with double tunnel-coupled GaAs/AlGaAs quantum wells

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Abstract

Intersubband absorption of mid-IR light was studied in heterostructures with asymmetrical tunnel-coupled quantum wells in equilibrium conditions and under high-power pum** by picosecond pulses of light. The energy spectrum of electrons in tunnel-coupled quantum wells was found from an analysis of equilibrium and nonequilibrium intersubband absorption spectra. The dynamics of intersubband absorption under high-power optical pum** was studied using the pump-and-probe picosecond technique. The experimental data are compared with the results of calculations based on solving rate equations. The intersubband relaxation times are determined.

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Authors and Affiliations

  1. St. Petersburg State Polytechnical University, St. Petersburg, 195251, Russia

    L. E. Vorob’ev, V. Yu. Panevin, N. K. Fedosov, D. A. Firsov & V. A. Shalygin

  2. Lebedev Physical Institute, Russian Academy of Sciences, Moscow, 117924, Russia

    V. V. Kapaev

  3. Institute of Physics, University of Bayreuth, 95440, Bayreuth, Germany

    S. Hanna, S. Schmidt, E. A. Zibik & A. Seilmeier

Authors
  1. L. E. Vorob’ev
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  2. V. Yu. Panevin
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  3. N. K. Fedosov
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  4. D. A. Firsov
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  5. V. A. Shalygin
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  6. V. V. Kapaev
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  7. S. Hanna
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  8. S. Schmidt
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  9. E. A. Zibik
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  10. A. Seilmeier
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Additional information

__________

Translated from Fizika i Tekhnika Poluprovodnikov, Vol. 39, No. 1, 2005, pp. 49–52.

Original Russian Text Copyright © 2005 by Vorob’ev, Panevin, Fedosov, Firsov, Shalygin, Kapaev, Hanna, Schmidt, Zibik, Seilmeier.

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Vorob’ev, L.E., Panevin, V.Y., Fedosov, N.K. et al. Intersubband absorption of light in heterostructures with double tunnel-coupled GaAs/AlGaAs quantum wells. Semiconductors 39, 41–43 (2005). https://doi.org/10.1134/1.1852642

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  • DOI: https://doi.org/10.1134/1.1852642

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