Abstract
In this paper, a new spectroscopy technology named terahertz time-domain spectroscopy (THz-TDS) is introduced, which is used in food safety. We describe a coherent subpicosecond THz spectroscopy system based on nonresonant optical rectification for the generation of THz radiation. As an example, we measured absorption spectrum of water vapor by THz-TDS in frequency from 0.5 to 2.5 THz, The experiment demonstrated that the spectroscopy resolution of system was up to 0.0001THz, which can be measured vegetable pesticide residual, for it neither need sample pretreatment nor cause pollution.
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© 2009 Springer-Verlag US
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Lang, L., Cai, N. (2009). STUDY OF APPLICATION OF THZ TIME DOMAINSPECTROSCOPY IN FOOD SAFET. In: Zhao, C., Li, D. (eds) Computer and Computing Technologies in Agriculture II, Volume 3. CCTA 2008. IFIP Advances in Information and Communication Technology, vol 295. Springer, Boston, MA. https://doi.org/10.1007/978-1-4419-0213-9_19
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DOI: https://doi.org/10.1007/978-1-4419-0213-9_19
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