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OALib Journal期刊
ISSN: 2333-9721
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近化学计量比高掺铁铌酸锂晶体的红光全息存储性能
Abstract:
采用提拉法生长了掺质量分数分别为0.01%,0.05%和0.10%Fe2O3的近化学计量比掺铁铌酸锂晶体(nearstochiometricFeLiNbO3,FeNSLN)。采用633nm波长的激光作为光源,利用二波耦合实验和光斑畸变法研究了晶体的红光全息性能。结果显示当铁含量小于0.05%时,随着铁含量的增加,晶体的写入时间和擦除时间变短,灵敏度增加,动态范围增大,最大衍射效率增强,抗光损伤能力降低。但当铁含量为0.10%时,最大衍射效率减小,抗光损伤能力急剧降低。结合晶体的结构缺陷模型对此现象进行了解释。
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