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| 五筒晶格光子晶体的带隙分析 |
| Analysis on the band gap of five-tube lattice photonic crystals |
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| DOI: |
| 中文关键词: 介质柱型 空气孔型 五筒光子晶体 完全带隙 |
| 英文关键词:dielectric cylinder type air holes type five-tube lattice photonic crystals complete band gap |
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| 中文摘要: |
| 在三角晶格和六角晶格基础上设计了一种五筒型光子晶体,分析了空气孔型和介质柱型两种类型光子晶体的带隙与晶格半径、介电常数和形状之间的关系:随着介电常数的增大,两种类型光子晶体的带隙所对应的归一化频率都逐渐减小;随着晶格半径的增大,介质柱型光子晶体带隙所对应的归一化频率逐渐减小,而空气孔型光子晶体则逐渐增大;对于介质柱型光子晶体,圆形晶格其归一化频率最大,方形晶格最小,而空气孔型光子晶体与之相反。 |
| 英文摘要: |
| The five-tube lattice photonic crystals are designed based on the triangular lattice and the hexagonal lattice. The relationship between the band gap of two types of photonic crystals, i.e. air holes photonic crystals and medium columnar photonic crystals, and their respective lattice radius, permittivity and shape is analyzed. As the dielectric constant increases, normalized frequency corresponding to the band gap gradually decreases in two types of photonic crystals. As the lattice radius increases, normalized frequency corresponding to the band gap gradually decreases in the medium columnar photonic crystals, but that of the air hole photonic crystals increases. The normalized frequency is the largest in the circular dielectric cylinder photonic crystals, and the square lattice is the smallest. The results in the air hole photonic crystals are precisely the opposite. |
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