Recently, Terahertz wave which lies between radio wave and light has drawn many attentions from industrial areas. Terahertz is beginning to be applied to nondestructive testing and component analysis, exploiting its characters, which are excellent penetration through many objects and capability to obtain the spectrum specific to a certain substance. Terahertz has a wide field of application: industrial materials, agri-food, pharmaceutical industry, biomedical, security and environmental evaluation. Spectra Design provides the most suitable Terahertz spectrometers and imaging systems to our customers in response to their requests. In addition, Spectra Design produces a wide variety of systems for industries, universities and research institutes. Our Ph.D in Terahertz technology will help directly consultation to our customers. We are proud to offer optical sensing solutions to our customers in various industrial fields.