Crystal Growth in KTiOPO(4)-NaTiOPO(4)

Phase I will study tailoring the refractive index elliposoid of KTP to permit Type II phase matching at wavelengths shorter than 900nm, thereby permitting the SHG of laser diodes and Ti:Al2O3 solid state lasers. The system of solid solutions from mixing KTP with CsTiOPO4 will be studied and crystals grown. The nonlinear optical, mechanical and electrical properties of these crystals will be determined and the data compared with KTP. The benefits will be the identification of a new nonlinear optical material with large nonlinear properties suitable for SHG of laser diodes and solid state laser operating in the range less than 900nm. Efforts can be concentrated on growth of commercial size crystals and quality refinement. This will permit a domestic source of large, inexpensive nonlinear crystals for military and commercial device applications.