LiNbO3

Optical investigation of the propagation of the amorphous--crystalline boundary in ion-beam irradiated LiNbO$_3$

The effects of high-energy silicon (5 MeV, 7.5 MeV and 30 MeV) irradiations have been optically investigated by the dark-mode m-lines technique. In all cases, an optically isotropic homogeneous layer is created after a certain critical fluence that …

Compositional Study of LiNbO$_3$ Thin Films Grown by Liquid Phase Epitaxy

Lithium niobate (LN) films have been obtained on pure congruent single-domain LN substrates by the liquid phase epitaxy technique. Li-rich flux of LiVO$_3$ has been used. The optimum temperature for the film preparation has been found to be 860°C. …

On the Compositional Nature of Bulk Doped Periodic Poled Lithium Niobate Crystals

The compositional nature of the Erbium, Neodymium and Yttrium bulk doped periodic poled lithium niobate crystals obtained by the off-centered Czochralski technique has been studied. It has been observed that, in all cases, the impurity concentration …

Incorporation of vanadium in liquid phase epitaxy films of LiNbO$_3$

Second harmonic generation in Lithium Niobate (LN) thin films has been widely studied. This interest is extended to waveguides obtained by the Liquid Phase Epitaxy (LPE) technique due to the high perfection and crystallinity of the films. However the …

Structure of High Index Proton Exchange LiNbO$_3$ Waveguides with Undegraded Nonlinear Optical Coefficients

A structural study is presented on proton exchanged LiNbO$_3$ waveguides prepared in benzoic acid vapor which, for $z$-cut substrates, were previously reported to simultaneously exhibit high index jump, very low losses, and undegraded nonlinear …