Surface-state-induced second-harmonic generation
Journal
Journal of Physics Condensed Matter
Journal Volume
8
Journal Issue
36
Pages
6629-6639
Date Issued
1996
Author(s)
Subjects
We propose a simple and intuitively clear method for analysing the second-harmonic generation induced by surface states. The two-band model is used to calculate the wave functions and Green's function so that the second-harmonic current density and polarization can be evaluated. Assuming that the polarization is concentrated on the surface, we calculated the reflection intensity of the second-harmonic light. We apply our formalism to the L-gap surface states on the silver (110) surface and obtain results that agree reasonably well with experiments.
SDGs
Type
journal article