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Inhomogeneous broadening of the intersubband transitions in nonideal quantum wells

Physical Review B - Condensed Matter and Materials Physics, ISSN: 0163-1829, Vol: 66, Issue: 12, Page: 1253031-1253036
2002
  • 16
    Citations
  • 0
    Usage
  • 7
    Captures
  • 0
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    16
    • Citation Indexes
      16
  • Captures
    7

Article Description

We have theoretically studied the shape of the absorption peaks caused by the intersubband transitions of two-dimensional electrons in quantum wells, taking into account the interface roughness through the one-monolayer variation of heteroboundaries. An inhomogeneous broadening of absorption peaks due to the inplane nonscreened variation of excited levels appears, in good agreement with experimental measurements. We have evaluated the equations for the intersubband polarization by considering the depolarization shift and the exchange contributions. The shape of the absorption peaks is analyzed for the long-range disorder case under the resonant condition of the excitation and for the zero-temperature limit.

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