| 带有条形间隔矩形腔结构的波导滤波器特性分析 |
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| 引用本文： | 郭健平,朱家胡,黄旭光.带有条形间隔矩形腔结构的波导滤波器特性分析[J].光学与光电技术,2014(1):14-18. |
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| 作者姓名： | 郭健平 朱家胡 黄旭光 |
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| 作者单位： | [1]华南师范大学广东省微纳光子功能材料与器件重点实验室,广东广州510006 [2]华南师范大学物理与电信工程学院,广东广州510006 |
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| 基金项目： | 国家自然科学基金（61275059）,华南师范大学优秀青年教师基金（2012KJ002）资助项目 |
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| 摘 要： | 设计了一种带有条形间隔的矩形腔结构波导滤波器，并且利用时域有限差分法（FDTD）对其滤波特性进行了分析。结果表明该滤波器可以看成是两个T形腔的背向耦合，其透射性质与单T形腔类似，改变腔的长度和宽度可以改变透射谱的中心波长，以实现不同波长的滤波功能。
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| 关 键 词： | 表面等离子体 滤波器 波导 时域有限差分法 |
Study on Properties of Plasmonic Waveguide Filter Based on a Rectangular Geometry Resonator with a Strip-Type Inset |
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| GUO Jian-ping,ZHU Jia-hu,HUANG Xuguang.Study on Properties of Plasmonic Waveguide Filter Based on a Rectangular Geometry Resonator with a Strip-Type Inset[J].optics&optoelectronic technology,2014(1):14-18. |
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| Authors: | GUO Jian-ping ZHU Jia-hu HUANG Xuguang |
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| Institution: | 1 Laboratory of Nariophotonic Functional Materials and Devices, South China Normal University, Guangzhou 510006, China 2 School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou 510006, China ) |
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| Abstract: | Surface plasmon polaritons（SPPs） is the coherent oscillation 0f free charges propagating at the metal-dielectric in- terfaces and has been considered as one of promising candidates to overcome the classical diffraction limit for their ability to guide and manipulate light at deep subwavelength scales. In this paper, a plasmonic waveguide filter based on a rectangular geometry resonator with a strip-type inset is proposed and demonstrated. The physical mechanism of the device is deduced and the finite difference time domain（FDTD） method is employed to simulate and study its properties. The results show that the transmission characteristic of the proposed configuration is similar with the T-shaped filter and the cutoff wavelengthes could be modulated by changing the length or widthes of the cavity. |
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| Keywords: | surface plasmon polaritons filter waveguide finite difference time domain |
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