| 领结形中空表面等离子体波导的传输特性 |
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| 引用本文： | 贾智鑫,段欣,吕婷婷,郭亚楠,薛文瑞.领结形中空表面等离子体波导的传输特性[J].物理学报,2011,60(5):57301-057301. |
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| 作者姓名： | 贾智鑫 段欣 吕婷婷 郭亚楠 薛文瑞 |
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| 作者单位： | 山西大学物理电子工程学院,太原 030006 |
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| 基金项目： | 国家基础科学人才培养基金(批准号:J0730317)和山西省自然科学基金(批准号:2010011003-1)资助的课题. |
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| 摘 要： | 设计了一种领结形中空表面等离子体波导.采用频域有限差分法,对这种波导所支持的基模的能流密度分布、有效折射率、传播长度和模式面积随几何结构参数和工作波长的依赖关系进行了分析.结果表明,沿纵向的能流主要分布在两个上下突起所形成的中间区域.通过调整几何参数及工作波长,可以调节模式的有效折射率、传播长度和模式面积.在工作波长确定的条件下,有效折射率随突起半径的增大呈减小趋势,而传播长度和模式面积则随着突起半径的增大呈增大趋势,四个角上的圆弧半径对波导的传输特性有微调作用,左右扇形区域的半径对波导的传输特性有较明显
关键词：
集成光学
光波导
表面等离子体波导
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| 关 键 词： | 集成光学 光波导 表面等离子体波导 |
| 收稿时间： | 2010-05-11 |
Propagation properties of a surface plasmonic waveguide with a bowtie air cores |
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| Jia Zhi-Xin,Duan Xin,Lü Ting-Ting,Guo Ya-Nan,Xue Wen-Rui.Propagation properties of a surface plasmonic waveguide with a bowtie air cores[J].Acta Physica Sinica,2011,60(5):57301-057301. |
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| Authors: | Jia Zhi-Xin Duan Xin Lü Ting-Ting Guo Ya-Nan Xue Wen-Rui |
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| Institution: | College of Physics and Electronic Engineering, Shanxi University, Taiyuan 030006, China;College of Physics and Electronic Engineering, Shanxi University, Taiyuan 030006, China;College of Physics and Electronic Engineering, Shanxi University, Taiyuan 030006, China;College of Physics and Electronic Engineering, Shanxi University, Taiyuan 030006, China;College of Physics and Electronic Engineering, Shanxi University, Taiyuan 030006, China |
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| Abstract: | A kind of surface plasmonic waveguide with a bowtie shaped air core was designed.The dependence of distribution of longitudinal energy flux density,effective index and propagation length of the fundamental mode supported by this waveguide on geometrical parameters and working wavelength were analyzed using the finite-difference frequency-domain(FDFD) method.Results show that the longitudinal energy flux density distributes mainly in the center region which is formed by the top and the bottom ridge.The effec... |
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| Keywords: | integrated optics optical waveguides surface plasmonic waveguides |
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