Second-harmonic generation from split-ring resonators on a GaAs substrate.
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.
Niesler
F B P
FB
Institut for Angewandte Physik, DFG-Center for Functional Nanostructures, Universität Karlsruhe, Karlsruhe, Germany. fabian.niesler@physik.uni-karlsruhe.de
Feth
N
N
Linden
S
S
Niegemann
J
J
Gieseler
J
J
Busch
K
K
Wegener
M
M