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| 二维嵌套复式结构声子晶体的带隙研究 | |
| 引用本文： | 胡家光,张晋,敬守勇.二维嵌套复式结构声子晶体的带隙研究[J].人工晶体学报,2009,38(5). |
| 作者姓名： | 胡家光 张晋 敬守勇 |
| 作者单位： | 1. 文山师范高等专科学校数理系,文山,663000 2. 云南大学物理科学技术学院,昆明,650091 3. 深圳大学光电子学研究所,深圳,518060 |
| 基金项目： | 国家自然科学基金(No.10664006);;云南省基础研究计划重点项目(No.2007A0017Z);;文山师专校科研基金(No.08WSY06) |
| 摘 要： | 用小尺寸多圆柱阵列替代简单晶格中的每个单圆柱基元,构成一种全新的嵌套复式正方周期结构二维声子晶体。借助于平面波法计算了其带隙结构,得出了带隙分布图,讨论了基元阵列的内组合方式及总填充率对带隙范围和带隙数目的影响,并与简单晶格进行比较,从理论上验证了嵌套复式声子晶体利用小尺寸圆柱阵列展宽带隙及增加带隙数目的可行性。 |
| 关 键 词： | 声子晶体 能带结构 带隙 平面波法 |
Study on the Band Gaps of 2D Nesting Complex Structure Phononic Crystal |
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| HU Jia-guang,ZHANG Jin,JING Shou-yong.Study on the Band Gaps of 2D Nesting Complex Structure Phononic Crystal[J].Journal of Synthetic Crystals,2009,38(5). | |
| Authors: | HU Jia-guang ZHANG Jin JING Shou-yong |
| Institution: | 1.Department of Mathematics and Physics;Wenshan Teachers' College;Wenshan 663000;China;2.School of Physical Science and Technology;Yunnan University;Kunming 650091;3.Institute of Optoelectronics;Shenzhen University;Shenzhen 518060;China |
| Abstract: | A two dimensional phononic crystal with nesting complex square lattice structure was fabricated,using small columns array to replace each single column basis. The band gap structures of the phononic crystal were caculated with the plane wave expansion method. The band gap maps were introduced to illustrate the influences of the columns' array-form and total filling-fraction on the area and number of band gaps,the band gap structures of complex lattices and simple lattices were compared,which validate the fe... |
| Keywords: | phononic crystal band structure band gap plane wave expansion method |
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