Scattering of Circularly Polarized Terahertz Waves on a Graphene Nanoantenna

We present a surface current method to model the graphene rectangular nanoantenna scattering in the terahertz band with Comsol. Compared with the equivalent thin slab method, the results obtained by the surface current method are more accurate and efficient. Then the electromagnetic scattering of ci...

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Bibliographic Details
Published inChinese physics letters Vol. 33; no. 2; pp. 129 - 132
Main Author 刘志坤 谢亚楠 耿莉 潘登科 宋盼
Format Journal Article
LanguageEnglish
Published Chinese Physical Society and IOP Publishing 01.02.2016
Subjects
圆极化波
天线散射
太赫兹波
数值分析
电磁散射
石墨
纳米天线
表面电流
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Summary:We present a surface current method to model the graphene rectangular nanoantenna scattering in the terahertz band with Comsol. Compared with the equivalent thin slab method, the results obtained by the surface current method are more accurate and efficient. Then the electromagnetic scattering of circularly polarized terahertz waves on graphene nanoantennas is numerically analyzed by utilizing the surface current method. The depen- dences of the antenna resonant frequency with the circularly polarized wave on width and length are consistent with those for the linear polarized waves. These results are proved to be useful to design et~cient nanoantennas in terahertz wireless communications.
Bibliography:11-1959/O4
We present a surface current method to model the graphene rectangular nanoantenna scattering in the terahertz band with Comsol. Compared with the equivalent thin slab method, the results obtained by the surface current method are more accurate and efficient. Then the electromagnetic scattering of circularly polarized terahertz waves on graphene nanoantennas is numerically analyzed by utilizing the surface current method. The depen- dences of the antenna resonant frequency with the circularly polarized wave on width and length are consistent with those for the linear polarized waves. These results are proved to be useful to design et~cient nanoantennas in terahertz wireless communications.
Zhi-Kun Liu, Ya-Nan Xie, Li Geng, Deng-Ke Pan, Pan Song（ Key Laboratory of Specialty Fiber Optics and Optical Access Networks, Shanghai University, Shanghai 200072）
ISSN:0256-307X
1741-3540
DOI:10.1088/0256-307X/33/2/027802