物理学报Issue(19)：240-245,6.DOI:10.7498/aps.62.194207
基于格林函数法研究金属线栅在太赫兹波段的散射特性
Study on scattering properties of the metal wire gating in a THz band based on‘Green function method’
摘要
Abstract
The present paper utilizes the‘Green function method’ to analyze the scattering properties of the metal wire grating in the THz band, and further to study the influence of the diffraction on the transfer characteristic of the metal wire grating. Results prove that the transmission amplitude of the incident electromagnetic wave is increasing monotonously with the enlargement of the value of a/λ, and it arrives at the maximum in the zero-order diffraction limit. Due to the strengthened effect of diffraction, transmission curves of the incident electromagnetic wave show oscillation in the critical frequency transition region. Due to the diffraction effect, the transmission amplitude of the incident electromagnetic wave demonstrates an overall decline in the diffraction zone, and it is decreasing monotonously with the enlargement in the value of a/λ. Compared with microwave transmission line method, this method can aliminate the restriction that the wavelength of the incident electromagnetic wave must be greater than the wire grating constant, and the thickness of wire grating must be far less than the metal line width. This method could be used to analyze the distribution of the electromagnetic properties of the system accurately;and it will be a generally suitable one.关键词
金属线栅/太赫兹波/散射/格林函数法Key words
metal wire grating/THz wave/scattering/Green’s function method引用本文复制引用
张会云,刘蒙,尹贻恒,吴志心,申端龙,张玉萍..基于格林函数法研究金属线栅在太赫兹波段的散射特性[J].物理学报,2013,(19):240-245,6.基金项目
国家自然科学基金(批准号:61001018)、山东省自然科学基金(批准号:ZR2011FM009, ZR2012FM011)、山东科技大学杰出青年科学基金(批准号:2010KYJQ103)、山东省高等学校科技计划项目(批准号:J11LG20)、青岛市科技计划项目(批准号:11-2-4-4-(8)-jch)和山东科技大学科技创新基金(批准号:YCB120173)资助的课题 （批准号:61001018）
