Title :
Multipolar contributions to the second-order nonlinearity of gold
Author :
Kauranen, Martti ; Wang, Fu Xiang ; Rodriguez, Francisco ; Sipe, John E. ; Albers, Willem M. ; Ahorinta, Risto
Author_Institution :
Dept. of Phys., Tampere Univ. of Technol., Tampere, Finland
Abstract :
We use two-beam second-harmonic generation to separate the surface (electric-dipole) and bulk (magnetic-dipole and electric-quadrupole)-type contributions to the second-order nonlinear optical response of gold films of different thicknesses. Surprisingly, the bulk-type response is more sensitive to surface morphology than the surface-type response.
Keywords :
electric moments; gold; magnetic moments; nonlinear optics; optical harmonic generation; surface morphology; electric-dipole; electric-quadrupole; gold films; magnetic-dipole; multipolar contributions; second-order nonlinear optical response; surface morphology; two-beam second-harmonic generation; Gold; Magnetic films; Magnetic materials; Optical films; Optical materials; Physics; Response surface methodology; Rough surfaces; Surface morphology; Surface roughness; local fields; metal films; multipole effects; plasmonics; second-harmonic generation;
Conference_Titel :
Transparent Optical Networks (ICTON), 2010 12th International Conference on
Conference_Location :
Munich
Print_ISBN :
978-1-4244-7799-9
Electronic_ISBN :
978-1-4244-7797-5
DOI :
10.1109/ICTON.2010.5549167
