| 槽型腔表面等离子体滤波器特性研究 |
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| 引用本文： | 商科峰. 槽型腔表面等离子体滤波器特性研究[J]. 光通信研究, 2012, 38(5): 50-51 |
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| 作者姓名： | 商科峰 |
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| 作者单位： | 西南交通大学信息科学与技术学院信息光子与通信研究中心,四川成都,610031 |
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| 摘 要： | 为了降低槽型腔滤波器透射频谱的FWHM(半高全宽),采用FDTD(时域有限差分法)对基于MIM(金属-介质-金属)波导的单槽型腔滤波器和级联槽型腔滤波器结构进行了数值模拟,并用耦合模理论对其透射频谱进行了分析。仿真结果表明,级联槽型腔滤波器能够有效抑制透射频谱的FWHM,其透射频谱的FWHM仅为单槽型腔结构的30%～40%。
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| 关 键 词： | 表面等离子体激元 耦合谐振 波长滤波 集成光学 |
| 收稿时间： | 2012-03-21 |
Study of slot cavity surface plasmonic filter characteristics |
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| Shang Kefeng. Study of slot cavity surface plasmonic filter characteristics[J]. Study on Optical Communications, 2012, 38(5): 50-51 |
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| Authors: | Shang Kefeng |
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| Affiliation: | Shang Kefeng(Center for Information Photonics & Communications,School of Information Science & Technology, Southwest Jiaotong University,Chengdu 610031,China) |
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| Abstract: | In order to reduce the Full Width at Half Maximum (FWHM) of slot-type cavity filters, we numerically simulate the structures of the Metal-Insulator-Metal (MIM) waveguide-based single slot- and cascaded slot-type cavity filters by using the Finite-Difference Time-Domain (FDTD) method and analyze their transmission spectra by using the coupled mode theory. The simulation results show that the FWHM of the transmission spectrum of the cascaded slot-type cavity filters can be effectively suppressed to be only about 30%~40% of that of the single slot-type cavity filters. |
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| Keywords: | SPPs coupled resonance wavelength filtering integrated optics |
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