title: Second-harmonic generation from split-ring resonators on a GaAs substrate.
abstract: We study second-harmonic generation from gold split-ring resonators on a crystalline GaAs substrate. By systematically varying the relative orientation of the split-ring resonators with respect to the incident linear polarization of light and the GaAs crystallographic axes, we unambiguously identify a nonlinear contribution that originates specifically from the interplay of the local fields of the split-ring resonators and the bulk GaAs second-order nonlinear-susceptibility tensor. The experimental results are in good agreement with theoretical modeling.
authors: Institut for Angewandte Physik, DFG-Center for Functional Nanostructures, Universität Karlsruhe, Karlsruhe, Germany. fabian.niesler@physik.uni-karlsruhe.de
authors: F B P
authors: FB
authors: Niesler
authors: N
authors: N
authors: Feth
authors: S
authors: S
authors: Linden
authors: J
authors: J
authors: Niegemann
authors: J
authors: J
authors: Gieseler
authors: K
authors: K
authors: Busch
authors: M
authors: M
authors: Wegener