Optical Second-Harmonic Generation From Metals Viewed In Terms Of Inter- And Intraband Effects

Ole Keller; Kjeld Pedersen

doi:10.1117/12.950439

28 March 1989 Optical Second-Harmonic Generation From Metals Viewed In Terms Of Inter- And Intraband Effects

Ole Keller, Kjeld Pedersen

Proceedings Volume 1029, Scattering and Diffraction; (1989) https://doi.org/10.1117/12.950439
Event: 1988 International Congress on Optical Science and Engineering, 1988, Hamburg, Germany

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.

Citation Download Citation

Ole Keller and Kjeld Pedersen "Optical Second-Harmonic Generation From Metals Viewed In Terms Of Inter- And Intraband Effects", Proc. SPIE 1029, Scattering and Diffraction, (28 March 1989); https://doi.org/10.1117/12.950439

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