Structural and optical characterization of oriented LiTaO3 thin films deposited by sol-gel techniqueS. Youssef, R. Al Asmar, J. Podlecki, B. Sorli and A. FoucaranEur. Phys. J. Appl. Phys., 43 1 (2008) 65-71DOI: https://doi.org/10.1051/epjap:2008122