Intraband Optical Transitions

  • Lucjan Jacak
  • Arkadiusz Wöjs
  • Paweł Hawrylak
Part of the NanoScience and Technology book series (NANO)

Abstract

The characteristic single-particle excitation energy of typical quantum dots lies in the far infrared (FIR) range. Depending on the dot dimensions, this energy varies between a fraction to tens of meV. As described previously, in Sect. 4.1, due to the fact that the wavelength of light from this range (≈ 1 mm) considerably exceeds the dot diameter (< 1µm), the FIR radiation cannot couple directly to the internal (relative) motion of the system of confined electrons, but only to their center-of-mass motion. Indirect interaction of the FIR light with the relative motion of electrons, which would allow for the observation of the effects of electron-electron interactions in the FIR experiment, requires a coupling between the relative (rel) and the center-of-mass (cm) motions.

Keywords

Helium GaAs Reso Rounded 

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Copyright information

© Springer-Verlag Berlin Heidelberg 1998

Authors and Affiliations

  • Lucjan Jacak
    • 1
  • Arkadiusz Wöjs
    • 1
  • Paweł Hawrylak
    • 2
  1. 1.Wrocław University of TechnologyWrocławPoland
  2. 2.Institute for Microstructural SciencesNational Research Council of CanadaOttawaCanada

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