In this work, a new nonlinear optical Ba2Be2B2O7 crystal was grown by top-s
eeded solution growth method using BaB2O4-BaCO3-NaF fluxes. The differentia
l thermal analysis curve and a typical angle-tuned curve of Ba2Be2B2O7 crys
tal were also investigated. The measured ultraviolet absorption edge of the
title crystal was found to be about 215 nm.