Zirconium-holmium-doped lithium niobate crystal and preparation method and application thereof

The invention belongs to the technical field of crystal materials, and particularly relates to a zirconium-holmium-doped lithium niobate crystal and a preparation method and application thereof. The Ho < 3 + > is used as an active ion of the laser crystal, an up-conversion energy level structure is easy to generate, and the doping of Zr < 4 + > can effectively improve the light damage resistance of the lithium niobate crystal and improve the occupation of Zr < 4 + > in the crystal. According to the zirconium-holmium-doped lithium niobate crystal provided by the invention, the up-conversion luminescence property of Ho < 3 + > and the light damage resistance of Zr < 4 + > are combined, and the problem that the lithium niobate crystal cannot be used as a laser crystal material is solved. 本发明属于晶体材料技术领域，具体涉及一种锆钬掺杂铌酸锂晶体及其制备方法和应用。本发明中的Ho3+作为激光晶体的激活离子，易发生上转换的能级结构，而Zr4+的掺入则可以有效提升铌酸锂晶体的抗光损伤能力，改善Zr4+在晶体里的占位。本发明提供的锆钬掺杂铌酸锂晶体结合Ho3+的上转换发光性能和Zr4+的抗光损伤能力，解决了铌酸锂晶体不能做为激光晶体材料的问题。