Gas detection using terahertz waves

Abstract

We are utilizing the characteristics of terahertz electromagnetic waves to develop a system for remote ly dectecting whether dangerous gses are present at location such as disaster sites. In article, we give an overview of our sustem, which is based on technology for generating narrow-linewidth variablefrequency terahertz waves derived from optical tecniques. We also present results of gas absorption spectra experiments performed using this technology.