We report the second harmonic emission properties of self-organized gold nanowires arrays supported on dielectric substrates with a sub-wavelength periodic pattern.The peculiar morphology of the nanowires, which are locally tilted with respect to the average plane of the substrate, allows to generate maximum second harmonic signal at normal incidence with a polarization direction driven by the orientation of the wires (perpendicular to the wires). The generation efficiency was increased by tailoring the growth process in order to tune the metal plasmon resonance close to the pump field frequency and also by increasing the local tilt of the nanowires.
Tailored emission properties of second harmonic generation from self-organized metal nanowires arrays / Belardini, Alessandro; Larciprete, Maria Cristina; Centini, Marco; Fazio, Eugenio; Sibilia, Concetta; Bertolotti, Mario. - (2009). (Intervento presentato al convegno Lasers and Electro-Optics 2009 and the European Quantum Electronics Conference. CLEO Europe - EQEC 2009. European Conference on tenutosi a Munich (D) nel 14-19 June 2009) [10.1109/CLEOE-EQEC.2009.5192090].
Tailored emission properties of second harmonic generation from self-organized metal nanowires arrays
BELARDINI, ALESSANDRO;LARCIPRETE, Maria Cristina;CENTINI, MARCO;FAZIO, Eugenio;SIBILIA, Concetta;BERTOLOTTI, Mario
2009
Abstract
We report the second harmonic emission properties of self-organized gold nanowires arrays supported on dielectric substrates with a sub-wavelength periodic pattern.The peculiar morphology of the nanowires, which are locally tilted with respect to the average plane of the substrate, allows to generate maximum second harmonic signal at normal incidence with a polarization direction driven by the orientation of the wires (perpendicular to the wires). The generation efficiency was increased by tailoring the growth process in order to tune the metal plasmon resonance close to the pump field frequency and also by increasing the local tilt of the nanowires.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
