Journal
OPTICS COMMUNICATIONS
Volume 259, Issue 1, Pages 389-392Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.optcom.2005.08.029
Keywords
terahertz time-domain spectroscopy; animal tissue; water content; absorption
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We present terahertz time-domain spectroscopy characterization of various animal tissues obtained from pork and rats. As the sensitivity of terahertz radiation to polar molecules of water is very high, biological tissues with high level of hydration show strong absorption at terahertz frequencies. The experimental data indicate that skin, fat and lean pork tissues have different frequency-dependent response to terahertz radiation due to the variation in water content. The same type tissue from different animals, however, is observed to show very similar water absorption. (c) 2005 Elsevier B.V. All rights reserved.
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