Ce:Cu:KNSBN晶体自泵浦位相共轭效应研究  

INVESTIGATION ON SELF-PUMP PHASE CONJUGATE EFFECT IN Ce∶Cu∶KNSBN CRYSTALS

作　　者：王凤春[1] 郑威[1] 周玉祥[2] 张建[2] 徐玉恒[2] 

机构地区：[1]哈尔滨理工大学材料科学与工程学院,哈尔滨150040 [2]哈尔滨工业大学应用化学系,哈尔滨150001

出　　处：《硅酸盐学报》2004年第5期608-611,共4页Journal of The Chinese Ceramic Society

基　　金：国家基础研究发展973计划项目(G19990330);国家高技术研究发展863计划(2001AA31304)资助项目。

摘　　要：以硅钼棒作加热体,用Czochralski技术生长了Ce∶Cu∶Ba0 5Sr1 5K0 5Na0 5Nb5O15(Ce∶Cu∶KNSBN)晶体。测试了自泵浦位相共轭反射率和响应时间。以Ce∶Cu∶KNSBN晶体作记录介质和自泵浦位相共轭镜进行实时全息联想存储器实验。实验结果显示:以含75%,50%原信息的图像寻址时,读出图像清晰完整;以25%原信息的图像寻址时,能读出完整的图像;自泵浦位相共轭反射率R达到60%。对自泵浦位相共轭产生机理进行了研究。Using Si-Mo bar as the heater, the Ce:Cu:Ba0.5Sr1.5K0.5Na0.5 Nb5O15 (Ce:Cu:KNSBN) crystal was grown by the Czochralski method. The self-pumped phase conjugate reflectivity and the response time of Ce:Cu:KNSBN were measured. The real-time associated holographic storage experiment was performed by using Ce:Cu:KNSBN as the storage media and the self-pump phase conjugate mirror. The experimental results show that the pictures are clear and integrated when using 75 percent and 50 percent of the information of the original picture to address, and the integrated picture can also be obtained when 25 percent of the information is used. The self-pump phase conjugate reflectivity R reaches to 60%. The mechanism of the self-pump phase conjugate reflection was also investigated.

关 键 词：铌酸锶钡钾钠晶体 自泵浦位相共轭 联想存储 提拉法晶体生长 

分 类 号：O752.9[理学—晶体学]