Terahertz Brewster polarizing beam splitter on a polymer substrate

• 作 者: 张蒙恩 李向军 梁士雄 刘平安 刘建军 洪治
• 机 构: Centre for THz Research,China Jiliang University,Science and Technology on ASIC Laboratory,Hebei Sem
• 出 处: Chinese Optics Letters
• 发表日期: 2013年12期
• 关键词: splitter oscillator extinction terahertz counterpart verified backward transmitt

The performance of a terahertz(THz)Brewster polarizing beam splitter on polymer substrate is studied theoretically and experimentally.Simulations by using finite-element method demonstrate that both transmittance/reflectance and their extinction ratios are better than its 45 counterpart in a broad frequency range.Especially,the reflection extinction ratio improves significantly.The results are also verified experimentally with THz time domain spectroscopy(TDS)and backward wave oscillator(BWO)measurement system.

The performance of a terahertz (THz) Brewster polarizing beam splitter on polymer substrate is studied theoretically and experimentally. Simulations by using finite-element method demonstrate that both both transmittance / reflectance and their extinction ratios are better than its 45 counterpart in a broad frequency range. Particularly, the reflection extinction ratio significantly significantly. The results are also verified experimentally with THz time domain spectroscopy (TDS) and backward wave oscillator (BWO) measurement system.