| 基于磁光子晶体的磁控可调谐太赫兹滤波器和开关 |
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| 引用本文： | 郭展,范飞,白晋军,牛超,常胜江. 基于磁光子晶体的磁控可调谐太赫兹滤波器和开关[J]. 物理学报, 2011, 60(7): 74218-074218 |
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| 作者姓名： | 郭展 范飞 白晋军 牛超 常胜江 |
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| 作者单位： | 南开大学现代光学研究所,光电信息技术科学教育部重点实验室,天津 300071 |
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| 基金项目： | 国家重点基础研究发展计划(973) (批准号:2007CB310403),国家自然科学基金(批准号:60772105),天津市自然科学基金重点项目(批准号:10JCZDJC15200)和教育部博士点基金(批准号:20090031110033)资助的课题. |
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| 摘 要： | 本文研究了铁氧体磁性材料应用于太赫兹波导器件的可行性. 利用铁氧体磁性材料的磁导率随外磁场改变而变化的性质,设计出了一种新颖的磁控连续可调谐太赫兹滤波器和开关. 利用平面波展开法(plane wave expansion,PWE)和时域有限差分法(finite difference time domain,FDTD)计算了二维磁光子晶体中外磁场变化对带隙位置和宽度的影响,结果显示应用该结构实现的滤波器和开关具有良好的性能.关键词：磁光子晶体铁氧体太赫兹
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| 关 键 词： | 磁光子晶体 铁氧体 太赫兹 |
| 收稿时间： | 2010-06-29 |
| 修稿时间： | 2010-09-02 |
Magnetically tunable magnetic photonic crystal forterahertz switch and filter |
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| Guo Zhan,Fan Fei,Bai Jin-Jun,Niu Chao and Chang Sheng-Jiang. Magnetically tunable magnetic photonic crystal forterahertz switch and filter[J]. Acta Physica Sinica, 2011, 60(7): 74218-074218 |
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| Authors: | Guo Zhan Fan Fei Bai Jin-Jun Niu Chao Chang Sheng-Jiang |
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| Affiliation: | Institute of Modern Optics, Nankai University, Key Laboratory of Optoelectronic Information Science and Technology, Ministry of Education, Tianjin 300071, China;Institute of Modern Optics, Nankai University, Key Laboratory of Optoelectronic Information Science and Technology, Ministry of Education, Tianjin 300071, China;Institute of Modern Optics, Nankai University, Key Laboratory of Optoelectronic Information Science and Technology, Ministry of Education, Tianjin 300071, China;Institute of Modern Optics, Nankai University, Key Laboratory of Optoelectronic Information Science and Technology, Ministry of Education, Tianjin 300071, China;Institute of Modern Optics, Nankai University, Key Laboratory of Optoelectronic Information Science and Technology, Ministry of Education, Tianjin 300071, China |
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| Abstract: | The feasibility of ferrite magnetism materials applied to THz waveguide devices is investigated. A novel continuously tunable bandpass filter and switch under the control of an external magnetic field in a terahertz wave band are designed. Detailed calculations on the shift and the variation in the position of the bandgap reveal that the filter and the switch achieved by this two-dimensional magnetic photonic crystal waveguide have good performancs. |
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| Keywords: | magnetic photonic crystal ferrite terahertz |
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