Open AccessModeling of the χ^(2) susceptibility time-evolution in thermally poled fused silica
Author(s) -
Alexandre Kudlinski,
Yves Quiquempois,
G. Martinelli
Publication year - 2005
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/opex.13.008015
Subject(s) - poling , materials science , electric field , optics , silica glass , second harmonic generation , nonlinear optics , time evolution , layer (electronics) , optoelectronics , dielectric , ferroelectricity , composite material , physics , laser , quantum mechanics
The dynamics of the second-order nonlinearity induced in a thermally poled Infrasil silica glass is experimentally and theoretically studied. 200 mum and 500 mum-thick samples have been poled for different durations varying from 1 minute to 100 minutes. After the poling process, the magnitude and the spatial distribution of the induced chi((2)) susceptibility have been characterized accurately with the "layer peeling" method. A two-charge carrier model with an electric field dependant charge injection is used to explain the experimental time-evolution of the chi((2)) profiles. A good agreement between experimental results and simulations is reported.