【摘要】 以Czochralski技术生长不同Li/Nb比Zn∶Mn∶Fe∶LiNbO3晶体。测试晶体抗光散射能力,Li/Nb=1.38的Zn∶Mn∶Fe∶LiNbO3晶体抗光散射能力比Fe∶LiNbO3高一个数量级以上。以二波耦合光路,双波长(蓝光-红光)存储技术,测试晶体全息存储性能,结果表明双波长存储性能优于双色存储。双波长(蓝光-红光)(476nm)的光激载流子是空穴。Mn离子是浅能级,Fe离子是深能级。采用Li/Nb=0.94和1.05的Zn∶Mn∶Fe∶LiNbO3晶体作为存储介质,以双波长(蓝光-红光)进行非挥发存储实验,它的非挥发衍射效率和响应速度高于双色存储。更多还原

【Abstract】 Zn∶Mn∶Fe∶LiNbO3 crystals with various Li/Nb ratios were grown by the Czochralski method. The optical scattering resistance ability of crystals were measured,the optical scattering resistance of Zn∶Mn∶Fe∶LiNbO3 crystal of Li/Nb=1.38 are over one order of magnitude higher than that of Zn∶Mn∶Fe∶LiNbO3 crystal. The holographic storage properties measured by using two wave coupling optical path dual wavelength (blue-red light) technique. The dual wavelength storage properties superior to dual color storage properties. The optical stimulation carriers of dual wavelength [blue light (476 nm)-red light] are hole. Mn ion is shallow energy,Fe ion is deep energy level. Using Zn∶Mn∶Fe∶LiNbO3 crystal of Li/Nb=0.94 and 1.05 go on dual wavelength nonvolatile holographic storage experiment,its nonvolatile diffraction efficiency and response speed are higher than that of dual color nonvolatile holographic storage.更多还原