Abstract
AbstractWe have measured azimuthal angle dependence of the optical second‐harmonic (SH) intensity from Pt nanowire arrays on the faceted MgO(110) substrates. The cross‐sectional shapes of the fabricated Pt nanowires were also observed by transmission electron microscopy. The observed SH intensity patterns as a function of the sample rotation angle around the surface normal were characterized by the effective nonlinear susceptibility arising from the Cs symmetry of the Pt nanowire arrays. The correlation of the cross‐sectional shapes of the wires and their nonlinear susceptibility is discussed. Copyright © 2010 John Wiley & Sons, Ltd.
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