Near field optical spectroscopy of interacting electron systems

Martino, Giovanna; Savasta, Salvatore; Girlanda, Raffaello
April 2000
AIP Conference Proceedings;2000, Vol. 513 Issue 1, p162
Academic Journal
We present a numerical study of the local optical properties of electrons and holes interacting via the Coulomb potential. The local linear optical susceptibility is calculated with Lanczos iteration techniques for a quasi-one dimensional extended Hubbard semiconductor model. We apply this numerical method to analyze the combined effects of disorder-induced localization, Coulomb correlations and local probing in semiconductors. Calculations are carried out for different spatial resolutions ranging from diffraction limited spectroscopy to near field spectroscopy. © 2000 American Institute of Physics.


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