纸太赫兹半波片的制作和测试

Fabrication and measurements of paper terahertz half-wave plate

摘要:

采用普通的打印纸经过简单工艺制作出纸太赫兹半波片。使用太赫兹时域光谱(THz-TDS)技术，测量了纸波片在200 GHz~400 GHz的折射率、吸收系数、频谱、消光比、参数C等光学特性随纸波片取向的变化关系，将实验结果与理论分析相结合，发现该纸波片是对频率为282.5 GHz的半波片。

Abstract:

A paper terahertz half-wave plate is fabricated with ordinary office paper through a simple process. Its refractive index, absorption coefficients, spectrum, extinction ratio, and parameter C are measured from 200 GHz to 400 GHz in different plate orientations by adopting Terahertz Time-Domain Spectroscopy(THz-TDS) technique. Combining the experimental results with the theoretical analysis, it is found that the performances of the proposed paper wave plate agrees well with the good characteristics of half-wave plate at 282.5 GHz.