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太赫兹(THz)辐射是一种新型的远红外相干辐射源,具有很多独特的性质。利用太赫兹时域光谱技术和太赫兹成像技术实现无损检测,已经成为现有无损检测技术的有力补充。笔者介绍了太赫兹无损检测技术在多个领域的应用,论述了太赫兹技术在这些领域的检测原理,探讨了存在的问题,并对发展前景进行了展望。
THz radiation is a new type of far-infrared coherent radiation source with many unique properties. Non-destructive testing using terahertz time-domain spectroscopy and terahertz imaging has become a powerful complement to existing NDT techniques. The author introduces the application of terahertz nondestructive testing technology in many fields, discusses the detection principle of terahertz technology in these fields, discusses the existing problems and prospects the development prospects.