【摘要】 ——本文计算了应用于光泵远红外波导激光器的玻璃介质和金属空心圆柱波导管的衰减常数;比较了玻璃介质和不同材料的金属圆柱波导管亚毫米波和短毫米波的传输特性。采用特殊工艺研制了玻璃镀金波导管,应用光泵远红外激光器谱线测试了波导管的传输特性。玻璃镀金波导管性能优于其它波导管。更多还原

【Abstract】 Attenuation constants of metals and glass hollow cylindrical waveguides for optically pumped far infrared waveguide lasers are calculated by using existing theories. A new way to build a metal hollow cylindrical waveguide for sub-mm and mm waves is given by coating gold on the inner-wall of the glass tube. The far infrared transmission characteristics of this waveguide are investigated at wavelengths of 118.8μm, 447.2μm and 496μm. The performance of this waveguide is better than that of a brass one.更多还原