Growth and Etching Studies of MgO-Doped LiNbO3 Single Crystal
LiNbO3 (Mg:LN) crystal is an important electro-optical material and MgO-doped LiNbO3 was expected to improve its optical damage resistance. In the present work, we reported the Bridgman growth of MgO-doped LiNbO3 crystal. The growth parameters were discussed and the defects were investigated by the chemical etching method. The etch hillocks and etch pits were observed on the negative Z surface while only etch pits on the positive Z surface by the optical microscope and EPMA. The etching morphology was discussed considering the domain structure.
Yuan Ming Huang
X. H. Li et al., "Growth and Etching Studies of MgO-Doped LiNbO3 Single Crystal", Materials Science Forum, Vols. 663-665, pp. 1133-1136, 2011