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Researchers at Shizuoka University in Japan have found a way to use an attenuated total reflection version of terahertz spectroscopy to identify drugs in plastic packaging even for compounds with high terahertz absorption.
One of the promising applications of terahertz waves is non-destructive testing. According to research findings, terahertz time-domain attenuated total reflection spectroscopy could be used to non-destructively detect samples packaged in a thin polyethylene bag based on their spectral fingerprints.