Hydrothermal growth of hexagonal beryllium borate crystals for use in laser non-linear optical and birefringent applications and devices

Joseph W. Kolis
Colin D. Mcmillen
Henry G. Giesber

Document Type Patent


Single, acentric, hexagonal, beryllium borate crystals having the formula Sr.sub.2Be.sub.2B.sub.2O.sub.7 and of a size sufficient for use in a variety of laser and non-optical applications are formed by a hydrothermal method. Alternate structures are formed by partially substituting the strontium ion with at least one other divalent metal ion.