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Proceedings Paper

Optical Second-Harmonic Generation From Metals Viewed In Terms Of Inter- And Intraband Effects
Author(s): Ole Keller; Kjeld Pedersen
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Paper Abstract

The result of a recently established random-phase-approximation description of the electric-dipole contribution to the nonlinear current density, stemming from the breaking of inversion symmetry in the selvedge region and in the bulk, is summarized. The symmetry scheme for the electric-dipole response tensor is discussed, and relevant surface-response parameters are introduced. On the basis of a simple two-band bulk model, the so-called parallel-band contribution to the nonlinear electric-dipole response in Al is calculated. It is emphasized that the role of the electric-dipole response from the bulk of metal crystals, which are referred to as centrosymmetric in macroscopic terms, should be further investigated. The rotational anisotropy effect in Al is discussed within the framework of the two-band model. Finally, preliminary experimental results, demonstrating the rotational effect in Al, are presented.

Paper Details

Date Published: 28 March 1989
PDF: 14 pages
Proc. SPIE 1029, Scattering and Diffraction, (28 March 1989); doi: 10.1117/12.950439
Show Author Affiliations
Ole Keller, University of Aalborg (Denmark)
Kjeld Pedersen, University of Aalborg (Denmark)


Published in SPIE Proceedings Vol. 1029:
Scattering and Diffraction
Hedzer A. Ferwerda, Editor(s)

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