摘要
采用Czochralski技术生长不同Li/Nb双掺杂Zr:Fe:LiNbO3晶体,测试了晶体的光学均匀性和抗光折变能力。Zr:Fe:LiNbO3晶体双折射梯度比Fe:LiNbO3晶体降低一个数量级,抗光折变能力比Fe:LiNbO3晶体提高一个数量级,发现Zr4+在LiNbO3中具有抗光折变能力。采用二波耦合光路测试不同Li/Nb的Zr:Fe:LiNbO3晶体的衍射效率、响应时间、擦除时间并计算了动态范围和灵敏度,Zr:Fe:LiNbO3晶体的响应速度,灵敏度和动态范围都比Fe:LiNbO3晶体高,它的全息存储性能优于Fe:LiNbO3晶体。
The various Li/Nb double doped Zr：Fe：LiNbO3 crystals were grown by Czochralski technique. The optical homogeneity and the photorefractive resistance ability of crystals were measured. The birefringence gradient of Zr： Fe ： LiNbO3 crystals is lower one order of magnitude than that of Fe ： LiNbO3 crystals. The photorefractive resistance ability increases one order of magnitude than that of Fe：LiNbO3 crystals. It is found Zr4＋ in LiNbO3 possess photorefractive resistance ability. The diffraction efficiency, response time and erasure time of various Li/Nb Zr： Fe： LiNbO3 crystals were measured by two wave coupling photo-path and dynamic range and sensitivity were calculated. The response speed sensitivity and dynamic range of Zr： Fe： LiNbO3 crystals are higher than that of Fe： LiNbO3 crystals and their holographic storage properties superior to that of Fe：LiNbO3 crystals
出处
《人工晶体学报》
EI
CAS
CSCD
北大核心
2008年第4期839-843,848,共6页
Journal of Synthetic Crystals
基金
国家自然科学基金资助项目(No.60777006)
黑龙江省自然科学基金资助项目(No.GC06A114)
黑龙江省教育厅科学技术研究项目(No.11531250)
哈尔滨师范大学科研基金(KM2007-07)
