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Vertically aligned arrays of ultralong ZnO nanowires were synthesized on SiO 2 substrates with carbothermal vapor phase transport method with Au seeding layer. High density of vertically aligned ZnO nanowires with lengths from a few to ∼300μm could be grown by controlling growth conditions. Supply of high concentration of Zn vapor and control of the ratio between Zn vapor and oxygen are found...
Angularly and spectrally resolved second harmonic studies for c-axis ZnO nanorods are reported. 7.5 times higher efficiency than for BBO was found at 55 GW/cm2 at Ti:sapphire laser oscillator wavelengths. Spectral profiles agree with simulations.
We performed second harmonic generation using Maker fringe technique and z-scan measurement to determine macroscopic second- and third-order nonlinear optical susceptibilities of vertically well-oriented ZnO nanorods of different diameters, grown by a hydrothermal process.
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