We implement a simple and powerful approach to characterize the domain distribution in the bulk of quadratic ferroelectric crystals via far-field second-harmonic spectroscopy. The approach is demonstrated in a lithium tantalate sample with periodic electric field poling and random mark-to-space ratio.
Cite
@article{arxiv.1210.1363,
title = {Nonlinear Disorder Mapping Through Three-Wave Mixing},
author = {Alessia Pasquazi and Alessandro Busacca and Salvatore Stivala and Roberto Morandotti and Gaetano Assanto},
journal= {arXiv preprint arXiv:1210.1363},
year = {2012}
}