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Local Optical Spectroscopy in Quantum Confined Systems: A Theoretical Description

O. Mauritz·G. Goldoni·F. Rossi·E. Molinari
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Abstract

A theoretical description of local absorption is proposed in order to investigate spectral variations on a length scale comparable with the extension of the relevant quantum states. A general formulation is derived within the density-matrix formalism including Coulomb correlation, and applied to the prototypical case of coupled quantum wires. The results show that excitonic effects may have a crucial impact on the local absorption with implications for the spatial resolution and the interpretation of near-field optical spectra.

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O. Mauritz, G. Goldoni, F. Rossi, E. Molinari. 1998-12-09. Local Optical Spectroscopy in Quantum Confined Systems: A Theoretical Description. https://doi.org/10.1103/physrevlett.82.847

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