Nonlinear Disorder Mapping Through Three-Wave Mixing

A. Pasquazi, A. Busacca, S. Stivala, R. Morandotti, G. Assanto
2010 IEEE Photonics Journal  
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.
doi:10.1109/jphot.2009.2039866 fatcat:7mb2ir4rujdgxn2dqd54rsy4am