| 引用本文： |
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卢强华,刘瑶,邱鸿广,黄创高,高英俊.三重对称光子晶体表面波的研究[J].广西科学,2014,21(3):231-235. [点击复制]
- LU Qiang-hua,LIU Yao,QIU Hong-guang,HUANG Chuang-gao,GAO Ying-jun.Research on Surface Waves of Triply-symmetric Photonic Crystals[J].Guangxi Sciences,2014,21(3):231-235. [点击复制]
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| 摘要: |
| [目的]推导三层对称膜(ABA)n结构可以等效为一层膜的情况。[方法]通过MATLAB编程模拟得到了共振吸收峰,并通过改变组成光子晶体的材料的介质参数,分析了其对表面波的影响。[结果]给出等效光导纳和等效相厚度的公式,并讨论三层对称结构的表面波存在的色散关系。[结论]当A,B层均为正折射率材料时,(ABA)n型光子晶体能带和禁带的位置和宽度随nB/nA的比值而改变,且共振吸收峰的数目及位置也同样随之而改变。 |
| 关键词: 光子晶体 表面模 传输矩阵法 共振吸收光谱 |
| DOI：10.13656/j.cnki.gxkx.20140612.003 |
| 投稿时间：2014-04-24 |
| 基金项目:国家自然科学基金项目(51161003)和(50661001),广西自然科学基金重点项目(2012GXNSFDA053001),广西大学广西有色金属及特色材料加工重点实验室开放基金(GXKFJ12-01)及广西大学科研基金项目(XJZ110611)资助。 |
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| Research on Surface Waves of Triply-symmetric Photonic Crystals |
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LU Qiang-hua1, LIU Yao1, QIU Hong-guang1, HUANG Chuang-gao1,2, GAO Ying-jun1,2
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| (1.College of Physics Science and Engineering, Guangxi University, Nanning, Guangxi, 530004, China;2.Guangxi Key Laboratory for Non-ferrous Metal and Featured Materials, Guangxi University, Nanning, Guangxi, 530004, China) |
| Abstract: |
| [Objective] Surface waves of triply-symmetric mode (ABA)n structural photonic crystals are studied.[Methods] The resonance absorption spectra of photonic crystal materials are obtained with the help of MATLAB method, and various dielectric parameters are adapted to analyze their influence on surface waves.[Results] The formulas of equivalent light admittance and phase thickness are deduced, and the dispersion relation with the surface waves of the triply-symmetric structure are discussed.[Conclusion] When both layers A and B are positive index material, the positions and widths of the permitted/forbidden band of (ABA)n photonic crystals, as well as the numbers of resonance peaks, are varied with the value of nB/nA. |
| Key words: photonic crystals surface modes transferred matrix method resonance absorption spectrum |
