Far-infrared signature of animal tissues characterized by terahertz time-domain spectroscopy |
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| Authors: | Mingxia He Abul K. Azad Weili Zhang |
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| Affiliation: | a School of Electrical and Computer Engineering, Oklahoma State University, 202 Engineering South, Stillwater, OK 74078, USA
b College of Precision Instrument and Optoelectronics Engineering, Tianjin University, Tianjin 300072, PR China |
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| Abstract: | 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. |
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| Keywords: | 42.65.Re 87.80.&minus y |
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