Structural Characterization Using X-ray Diffraction of Ti Indiffused Periodically Poled LiNbO3 Fabricated by Direct Electron Beam Bombardment

Abstract

Periodic poling in titanium indiffused lithium niobate by direct electron beam irradiation is reported in this paper and the benefits the technique of X-ray diffraction (XRD) as a method to examine the structure of ferroelectric domains is presented. It is shown that in the case of periodically poled crystals with a grating period lower or equal than a few microns, XRD enables to straightforwardly access the domain inverted grating period. The use of analytical functions to model the XRD profiles allows this method to be easily implemented for on line non-destructive characterization of the devices.