Magnesium oxide thin films on Y-cut lithium niobate single crystal substrate are prepared by sol-gel processing then,a Mg-ion indiffusion process is applied to study its surface characteristics.

• 利用溶胶-凝胶工艺在Y切铌酸锂单晶基片衬底上制备氧化镁薄膜，经镁离子内扩散后，进行了其表面改性研究。