硅酸盐学报2008，Vol.36Issue(5)：608-611,4.
近化学计量比铌酸锂晶体生长的新方法
A NEW CRYSTAL GROWTH METHOD FOR THE GROWTH OF NEAR-STOICHIOMETRIC LiNbO3
摘要
Abstract
By means of temperature field computer design, a new crystal growth method called the hanging double crucible pulling method was developed. With a steady polyerystalline raw material feeding rate, near-stoichiometrie lithium niobate (NSLN) crystal (φ50 mm×50 mm) has been successfully grown in Li-rich melt (with Li2O mole fraction (the same below) of 58.5%). The absorption spectrum of the crystal shows that when the Li content reaches 49.87%, an obvious ultraviolet absorption edge shift occurs. The opti-cal homogeneity of the NSLN crystal was measured by a laser interferometer. Refractive index inhomogeneity (root mean square) An of the NSLN crystal is 7.250×10-5Cm-1.关键词
铌酸锂/近化学计量比/提拉法/悬挂式双坩埚Key words
lithium niobate/ near-stoichiometric/ Czochralski method/ hanging double crucible引用本文复制引用
吴剑波,姚淑华,夏宗仁,秦小勇,高磊,刘宏,王继扬..近化学计量比铌酸锂晶体生长的新方法[J].硅酸盐学报,2008,36(5):608-611,4.基金项目
国家"863"计划(2006AA030106)资助项目. （2006AA030106）
