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  • Pozina, Galia, et al. (author)
  • Purcell Effect and Nonlinear Behavior of the Emission in a Periodic Structure Composed of InAs Monolayers Embedded in a GaAs Matrix
  • 2019
  • In: Annalen der Physik. - : WILEY-V C H VERLAG GMBH. - 0003-3804 .- 1521-3889. ; 531:6
  • Journal article (peer-reviewed)abstract
    • Enhancement of spontaneous emission in a resonant Bragg quantum well (QW) structure with 60 periods of triple InAs monolayers embedded in a GaAs matrix is studied experimentally and theoretically. From measurements of the time-resolved photoluminescence, besides the QW exciton at 1.47 eV, a specific super-radiant (SR) emission demonstrating nonlinear properties is found. The SR mode shows a near-quadratic dependence of intensity on excitation power, while its energy position follows the Bragg condition. It is revealed that the SR mode shows a peculiar non-monotonic dependence of intensity on direction, with a maximum observed at approximately 40 degrees. The enhancement in the SR emission at a specific direction is correlated well with suggested theoretical consideration of the modal Purcell factor for periodic quantum well structures.
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Type of publication
journal article (1)
Type of content
peer-reviewed (1)
Author/Editor
Pozina, Galia (1)
Morozov, Konstantin ... (1)
Girshova, Elizaveta ... (1)
Kaliteevski, Mikhail ... (1)
Ivanov, Konstantin A ... (1)
Egorov, Anton Yu (1)
University
Linköping University (1)
Language
English (1)
Research subject (UKÄ/SCB)
Natural sciences (1)
Year
2019 (1)

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