Title :
Multipolar Effects in Second-harmonlc Generatlon from Gold Nanoparticles
Author :
Kujala, Sami ; Canfield, Brian K. ; Kauranen, Martti ; Svirko, Yuri ; Turunen, Jari
Author_Institution :
Tampere Univ. of Technol., Tampere
Abstract :
In this work, in order to reveal the role of the multipolar contribution to the mesoscale second-order optical nonlinearity, we present tensorial analysis of coherent second-harmonic (SH) generation from L-shaped gold nanoparticles. Our experimental method is based on the differences between the radiative properties of electric dipoles and higher multipoles. Our preliminary results indicate that, with our experimental conditions, about 20% of the magnitude of the SH response for certain polarization configurations has multipolar origins.
Keywords :
gold; light polarisation; nanoparticles; optical harmonic generation; optical materials; Au; L-shaped gold nanoparticles; coherent second-harmonic generation; electric dipoles; mesoscale second-order optical nonlinearity; multipolar effects; polarization configuration; radiative properties; Electric variables measurement; Gold; Nanoparticles; Nanostructures; Nonlinear optics; Optical polarization; Optical reflection; Optical scattering; Optimized production technology; Tensile stress;
Conference_Titel :
Lasers and Electro-Optics, 2007 and the International Quantum Electronics Conference. CLEOE-IQEC 2007. European Conference on
Conference_Location :
Munich
Print_ISBN :
978-1-4244-0931-0
Electronic_ISBN :
978-1-4244-0931-0
DOI :
10.1109/CLEOE-IQEC.2007.4387042
