| 机械可调一维光子晶体 |
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| 作者姓名： | 许震宇 |
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| 作者单位： | 同济大学,航空航天与力学学院,上海,200092 |
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| 基金项目： | 同济大学校科研和教改项目 |
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| 摘 要： | 设计了机械可调的一维光子晶体，它由沉浸在空气中的多层高折射率介质构成．通过数值计算验证了这种晶体的可调性．计算结果表明，均匀改变介质层之间的距离，会使带隙的位置发生变化；如果改变某空气层的厚度，会在光带隙中产生缺陷态，缺陷态的位置随该空气层的厚度的改变而改变．这种调节方法具有快速、非破坏性、连续调节等优点，
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| 关 键 词： | 可调光子晶体 光带隙性能 微机械 |
| 文章编号： | 0253-374X（2006）07-0978-03 |
| 收稿时间： | 12 30 2004 12:00AM |
| 修稿时间： | 2004-12-30 |
One-Dimensional Mechanically Tunable Photonic Crystal |
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| Authors: | XU Zhenyu |
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| Institution: | Sehcol of Aerospace Engineering and Applied Mechanics, Tongji University, Shanghai 200092, China |
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| Abstract: | A mechanically tunable photonic crystal(MTPC) which is composed of muti-layers of dielectric material immersed in air is designed.Computations results show that,if the space between the dielectric layers is changed uniformly,the position of the photonic band gap(PBG) is changed;If the thickness of one air layer is changed,a defect comes into being,and the corresponding defect mode in the PBG will change accordingly.Such a tuning mechanism is fast,nondestructive and continuous. |
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| Keywords: | tunable photonic crystal photonic band gap micromachine |
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