中国光学2021，Vol.14Issue(4)：782-791,10.DOI:10.37188/CO.2021-0098
基于双各向异性超构表面的多样化表面波
Diverse surface waves supported by bianisotropic meta surfaces
游欧波 1高文龙 2刘亚超 3项元江 4张霜1
作者信息
- 1. 香港大学物理學系,香港,中国
- 2. Department of Physics,Paderborn University,Warburger Stra?e 100, Paderborn Germany,33098
- 3. 深圳大学微纳光电子学研究院,深圳 中国,518060
- 4. 湖南大学物理与微电子科学学院,长沙 中国,410082
- 折叠
摘要
Abstract
Surface waves supported by structured metallic surfaces, i.e.metasurfaces, have drawn wide atten-tion recently.They are promising for various applications ranging from integrated photonic circuits to ima-ging and bio-sensing in various frequency regimes. In this work, we show that surface states with diverse po-larization configurations can be supported by a metasurface consisting of a single layer of bianisotropic metamaterial elements.The structure possesses D2d symmetry, which includes mirror symmetry in the xz and yz plane, and C2 rotational symmetry along y = ±x axis. Due to this unique symmetry, the metasuface sup-ports both transverse electric (TE) and transverse magnetic (TM) waves along kx and ky directions, while a purely longitudinal mode and an elliptically polarized transverse electromagnetic(TEM) mode along ky = ±kx directions. The versatility of the surface modes on the metasurface may lead to new surface wave phenom-ena and device applications.关键词
表面等离子体激元/超构表面/双各向异性/横电模/横磁模Key words
surface plasmon/metasurface/bianisotropy/transverse electric/transverse magnetic分类
数理科学引用本文复制引用
游欧波,高文龙,刘亚超,项元江,张霜..基于双各向异性超构表面的多样化表面波[J].中国光学,2021,14(4):782-791,10.
