光折变KNSBN掺Cu晶体的生长

Growth of Photorefractive Cu-doped KNSBN Crystal

用 Czochralski 技术生长了 A 位置非充满型 KNSBN 掺 Cu 晶体,提拉速度为4—8mm/h,转速为15—20r/min;沿提拉方向测量了温场分布,用氩离子激光器测量了晶体的高光折变性能。

The unfully filled A-sites Cu-doped KNSBN crystal has beengrown by Czochralski technique.The pulling rate is 4-8mm/h,and the rotationrate 15-20r/min.The temperature field was measured along pulling directionThe high photorefractive properties have also been measured using Argon-ionlaser.