| 一维光折变光子晶体正负折射率的实验实现 |
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| 引用本文： | 温静,陈宝东. 一维光折变光子晶体正负折射率的实验实现[J]. 信息记录材料, 2009, 10(1) |
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| 作者姓名： | 温静 陈宝东 |
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| 作者单位： | 1. 内蒙古化工职业学院(南校区)继续教育部,呼和浩特,010010
2. 内蒙古工业大学,材料科学与工程学院,呼和浩特,010051 |
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| 摘 要： | 对利用光学方法在掺铁铌酸锂晶体中制作一维光折变光子晶体时的正负折射率进行了详细的理论分析和实验研究。当采用成像法制作一维光折变光子晶体时,通过控制成像掩模条纹的占空比,晶体中折射率降低的基础上出现了升高区域,即晶体内正、负折射率同时存在。实验结果显示,这种折射率分布与最佳占空比息息相关,并提高了一维光折变光子晶体折射率的对比度。
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| 关 键 词： | 光子晶体 折射率变化量 光折变 占空比 |
Experiment of a One-Dimensional Photonic Crystal of Photorefractive Including Positive-Negative Refractive Index |
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| WEN Jing,CHEN Bao-dong. Experiment of a One-Dimensional Photonic Crystal of Photorefractive Including Positive-Negative Refractive Index[J]. Information Recording Materials, 2009, 10(1) |
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| Authors: | WEN Jing CHEN Bao-dong |
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| Affiliation: | 1.Department of Continuing Education;Inner Mongolia Chemical Engineering Professional College;Hohhot 010010;China;2.College of Materials Science and Engineering;Inner Mongolia University of Technology;Hohhot 010051;China |
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| Abstract: | The positive-negative refractive index for a one-dimensional photonic crystal of photorefractive by optically-induced in LiNbO3:Fe crystals are theoretically and experimentally investigated.When the one-dimensional photonic crystal fabricated by optically imaging method,the duty cycle by controlling of imaging mask fringes,raised on the basis reduction of refractive index in crystal.The results show that the index distribution of the fabricated photonic crystal is strongly dependent on the optimal duty cycl... |
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| Keywords: | photonic crystal refractive index change photorefractive duty cycle |
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