Incoherent second-harmonic (SH) and third-harmonic (TH) generation, or hyper-Rayleigh scattering (HRS) on SH and TH, is proposed as a probe of nonlinear-optical properties of silver island films (SIF). HRS on SH and TH indicatrices and linear (Rayleigh) scattering (RS) indicatrices are measured. By the atomic force microscopy (AFM) we apply to study the surface topographic inhomogeneity. The density-density correlation function which describes the correlation of the spatial nonlinear susceptibilities fluctuations is derived from the AFM images of SIF. The interpretation of the experimental results is based on the correlation between optical ) properties and structural features of SIF.

Date Published: 1 November 2002
PDF: 7 pages
Proc. SPIE 4812, Nonlinear Spectroscopy, (1 November 2002); doi: 10.1117/12.451383

Published in SPIE Proceedings Vol. 4812:
Nonlinear Spectroscopy
David L. Andrews, Editor(s)