硅酸盐学报2011，Vol.39Issue(2)：355-358,364,5.
近化学计量比Cu:Fe:LiNbO3晶体的生长及蓝光优化光折变性能
Growth and Blue Photorefractive Properties of Near-Stoichiometric Cu:Fe:LiNbO3 Crystals
摘要
Abstract
Near-stoichiometric Cu:Fe:LiNbO3 crystals doped with 0.15％ (in mass, the same below) CuO, 0.03％ and 0.05 ％Fe2O3 were grown by top seeded solution growth method using K20 as a flux. The types of light-exciting carriers of Cu:Fe:LiNobO3 crystal were tested using Ar+ laser as light source at the 488 nm. The photorefractive holographic storage properties of the crystals were measured by two-wave coupling experiment, and were compared with those of Fe:LiNbO3 crystals tested using the 633nmlaser as light source. The results show that the holes are dominant in the light-exciting carriers of Cu:Fe:LiNbO3 crystal. Compared to the Fe:LiNbO3 crystal, the response speed, the sensitivity and dynamic range of Cu:Fe:LiNbO3 crystal are enhanced by 60, 67 and 15 times, respectively. The mechanism of blue photorefractive enhancement is discussed. The near-stoichiometric Cu:Fe:LiNbO3 crystals have excellent blue photorefractive properties.关键词
近化学计量比铌酸锂晶体/光折变性能/铜铁掺杂/顶部籽晶溶液生长法Key words
near-stoichiometric lithium niobate crystal/ photorefractive properties/ copper-iron codoping/ top seeded solution growth method引用本文复制引用
王义杰,莫阳,文爱花,徐超,冷雪松,张春雷,许磊,徐玉恒..近化学计量比Cu:Fe:LiNbO3晶体的生长及蓝光优化光折变性能[J].硅酸盐学报,2011,39(2):355-358,364,5.基金项目
黑龙江省教育厅科学研究基金(11551099)资助项目. （11551099）
