Second-harmonic generation from individual nanostructures is demonstrated. New symmetry selection rules derived for asymmetric nanoparticles allow for the distinction of different nonlinear source polarizations and enable simultaneous surface and bulk investigations.
© 2005 Optical Society of America
(190.0190) Nonlinear optics : Nonlinear optics
(190.3970) Nonlinear optics : Microparticle nonlinear optics
(240.0240) Optics at surfaces : Optics at surfaces
(240.4350) Optics at surfaces : Nonlinear optics at surfaces
C. C. Neacsu, G. A. Reider, and M. B. Raschke, "Second-Harmonic Generation on the Nanoscale: New Routes for Surface and Bulk Investigations," in Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science and Photonic Applications Systems Technologies, Technical Digest (CD) (Optical Society of America, 2005), paper QTuB1.