Nonlinear Optical Crystal Fluorine Boron Beryllium Salt and Its Preparation Process and Use

摘要

Crystalline NH₄Be₂BO₃F₂ or Be₂BO₃F (abbreviated as BBF) has nonlinear optical effect, is not deliquescent in the air, is chemically stable. They can be used in a variety of nonlinear optical fields and will pioneer the nonlinear optical applications in the deep UV band.