利用飞秒微加工和磁控溅射技术, 在熔融石英衬底上设计并制作了不同结构的金属线栅, 通过太赫兹时域光谱系统研究了线栅结构对太赫兹波偏振透射特性的影响, 并用有限时域差分法对实验结果进行了模拟验证.分析了影响S和P两个偏振方向太赫兹波透射的物理机制.为制作太赫兹波段偏振器件提供了有益的参考.

Metallic wire gratings in terahertz frequency were designed and fabricated by femtosecond micromaching and sputtering technique. The polarized transmission spectra of the gratings were characterized by terahertz (THz) time domain spectroscopy. The theoretical simulations based on FDTD method show a good agreement with experimental results. The physical origin of impacting transmittance in S and P polarization was analyzed. The results obtained from this work provide a useful referrence for the production of THz polarization devices.