Fe、Cu、Al三种金属狭缝的THz光谱测量  

THz Spectrum of Three Kinds of Metal Slits Based on Fe, Cu and Al

作　　者：刘红兰[1] 赵卉[1] 金武军[1] 许长虹[1] 徐山森[2] 赵昆[1] 

机构地区：[1]中国石油大学(北京)理学院,北京102249 [2]西安工程大学理学院,西安710048

出　　处：《现代科学仪器》2014年第1期143-145,共3页Modern Scientific Instruments

基　　金：基金资助：国家重大科学仪器设备开发专项（2012YQ14005）

摘　　要：本文利用太赫兹时域光谱技术研究了宽度在0．08mm-1mm的Fe、Cu、Al三种不同金属狭缝在0．2-1．5THz频段的光学性能，得到了三种样品的时域谱、频域谱、透过率谱，并对三种谱图进行了比较。结果表明金属狭缝对太赫兹波的响应只与狭缝宽度有关，与狭缝深度和材料本身关系不大。这种方法可以不必考虑产生狭缝裂纹的金属材料本身种类，为以后运用太赫兹技术实现对不同金属、异类金属焊缝、合金管道无损检测奠定基础。Optical properties and spectral characteristics of three kinds of metal slits of different widths have been investigated in 0.2-1.5THz using the terahertz technology.The time-domain spectroscopy, frequency-domain spectrum and transmittance spectrum of the three kinds of slits were analyzed.The result showed that the samples have the similar spectral response in terahertz spectral range and which have little relationship with different kinds of metal.This method lay the foundation of the potential use of terahertz technology to achieve non-destructive testing for different metal tubes,weld metals with different metals,alloy pipes for regardless of the metal materials which produce the slits.

关 键 词：太赫兹 太赫兹时域光谱 金属 狭缝 

分 类 号：TH744.1[机械工程—光学工程]