个人信息Personal Information
研究员
博士生导师
硕士生导师
性别:男
毕业院校:大连理工大学
学位:博士
所在单位:力学与航空航天学院
学科:计算力学. 工程力学
办公地点:综合实验1号楼
电子邮箱:chenbs@dlut.edu.cn
Multi-objective optimization of two-dimensional phoxonic crystals with multi-level substructure scheme
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论文类型:期刊论文
发表时间:2016-04-10
发表刊物:INTERNATIONAL JOURNAL OF MODERN PHYSICS B
收录刊物:SCIE
卷号:30
期号:9
ISSN号:0217-9792
关键字:Phononic crystal; photonic crystal; substructure; multi-objective topology optimization; bandgap
摘要:Phoxonic crystal (PXC) is a promising artificial periodic material for optomechanical systems and acousto-optical devices. The multi-objective topology optimization of dual phononic and photonic max relative bandgaps in a kind of two-dimensional (2D) PXC is investigated to find the regular pattern of topological configurations. In order to improve the efficiency, a multi-level substructure scheme is proposed to analyze phononic and photonic band structures, which is stable, efficient and less memory-consuming. The efficient and reliable numerical algorithm provides a powerful tool to optimize and design crystal devices. The results show that with the reduction of the relative phononic bandgap (PTBG), the central dielectric scatterer becomes smaller and the dielectric veins of cross-connections between different dielectric scatterers turn into the horizontal and vertical shape gradually. These characteristics can be of great value to the design and synthesis of new materials with different topological configurations for applications of the PXC.