| 各向异性金刚石结构的光子晶体 |
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| 引用本文： | 詹仪,郑义,李效增,李秀霞. 各向异性金刚石结构的光子晶体[J]. 光子学报, 2009, 38(7): 1713-1716 |
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| 作者姓名： | 詹仪 郑义 李效增 李秀霞 |
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| 作者单位： | 曲阜师范大学印刷学院,山东日照,276826;北京交通大学理学院,北京,100044 |
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| 基金项目： | 国家自然科学基金,project of Shandong Province Higher Educational Science and Technology Program |
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| 摘 要： | 基于平面波展开法,理论分析了填充率、介质各向异性的程度对单轴金刚石结构三维光子晶体禁带的影响.结果表明,当填充率和介质各向异性取合适的值,单轴各向异性金刚石结构光子晶体存在着完全带隙.介质各向异性的引入使该晶体的带隙变窄甚至完全关闭.在各个布里渊区域里,带隙率和带隙宽度随介质各向异性程度的变化而变化.各向异性的引入为调整光子禁带提供了一种方法.
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| 关 键 词： | 晶体学 光子禁带 平面波展开法 介质各向异性 |
| 收稿时间： | 2008-06-12 |
| 修稿时间： | 2008-08-28 |
Anisotropic Photonic Crystals with Diamond Lattice |
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| ZHAN Yi,ZHENG Yi,LI Xiao-zeng,LI Xiu-xia. Anisotropic Photonic Crystals with Diamond Lattice[J]. Acta Photonica Sinica, 2009, 38(7): 1713-1716 |
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| Authors: | ZHAN Yi ZHENG Yi LI Xiao-zeng LI Xiu-xia |
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| Affiliation: | (1 College of Graphic Arts, Qufu Normal University,Shandong Rizhao 276826, China)
(2 College of Science Beijing Jiaotong University, Beijing 100044, China) |
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| Abstract: | With the plane-wave expansion method,the photonic-band-gap structure for a diamond lattice consisting of a uniaxial anisotropic-dielectric sphere in air was studied through tuning three inequivalent 1/3 Brillouin zone.The results show that choosing the suitable range of filling fraction and anisotropy,a full band gap opens in the whole Brillouin zone for this anisotropic PBG structure.The gap to midgap ratio and bandgap width is tunable as a result of the changing extraordinary axis orientation of the uniax... |
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| Keywords: | Crystallography Photonic band gap Plane-wave method Dielectric anisotropy |
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