Ensemble of Uncoupled Oscillators

  • Claus F. Klingshirn
Part of the Graduate Texts in Physics book series (GTP)


The optical properties of matter are determined by the coupling of various types of oscillators in matter to the electromagnetic radiation field. In other words, an incident electromagnetic field will cause these oscillators to perform driven or forced oscillations. The amplitude of these driven oscillations depends on the angular frequency of the incident field, on the eigenfrequency0 of the oscillators, on the coupling strength f between electromagnetic field and oscillator, and on its damping. In semiconductors the main intrinsic oscillators or resonances are optical phonons, excitons including their ionisation continuum and higher band-to-band transitions or plasmons.


Oscillator Strength Dielectric Function Transition Matrix Element High Resonance Linear Optic 
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Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • Claus F. Klingshirn
    • 1
  1. 1.Institut für Angewandte PhysikKarlsruher Institut für Technologie (KIT)KarlsruheGermany

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