FDTD simulation on the interaction between gaussian beam and biaxial anisotropic metamaterial slabs

被引:3
|
作者
Wang, Maoyan [1 ]
Wu, Jian [2 ]
Xu, Jun [1 ]
Ge, Debiao [3 ]
Li, Hailong [3 ]
Feng, Jian [4 ]
机构
[1] Univ Elect Sci & Technol China, Sch Phys Elect, Chengdu 610054, Sichuan, Peoples R China
[2] China Res Inst Radiowave Propagat, Natl Key Lab Electromagnet Environm, Beijing 102206, Peoples R China
[3] Xidian Univ, Sch Sci, Xian 710071, Shanxi, Peoples R China
[4] China Res Inst Radiowave Propagat, Qingdao 266107, Shandong, Peoples R China
来源
INTERNATIONAL JOURNAL OF INFRARED AND MILLIMETER WAVES | 2008年 / 29卷 / 02期
关键词
anisotropic metamaterials; finite-difference time-domain method; auxiliary differential equation method; negative refraction;
D O I
10.1007/s10762-007-9316-7
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
The interaction between Gaussian beam and indefinite anisotropic metamaterial (AMM) slabs are simulated with auxiliary differential equation method in finite-difference time-domain method (FDTD). The directions of wave vector and energy flow densities in three types of AMM slabs are investigated. The field intensity distributions and phases of TE-polarized wave for the interaction between Gaussian beam and AMM slabs are given. Numerical results show that the sign of x component of relative permeability tensor of AMM determines the refraction is regular or anomalous, whereas the sign of z component of relative permeability tensor of AMM determines the energy flow is positively refracted or negatively refracted. Positive or negative Goos-Hanchen shift associated with Total Cutoff media are also shown.
引用
收藏
页码:167 / 178
页数:12
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