Title:
Human Skin as Arrays of Helical Antennas in the Millimeter and Submillimeter Wave Range
Author(s):
Yuri Feldman, Alexander Puzenko, Paul Ben Ishai, Andreas Caduff, and Aharon J. Agranat
Source:
PHYSICAL REVIEW LETTERS
Vol./Issue/Date:
PRL 100, 128102 week ending 2008
Year:
2008
Page(s):
128102/1 -128102/4
Keywords:
Abstract:
Recent studies of the minute morphology of the skin by optical coherence tomography showed that the sweat ducts in human skin are helically shaped tubes, filled with a conductive aqueous solution. A computer simulation study of these structures in millimeter and submillimeter wave bands show that the human skin functions as an array of low-Q helical antennas. Experimental evidence is presented that the spectral response in the sub-Terahertz region is governed by the level of activity of the perspiration system. It is also correlated to physiological stress as manifested by the pulse rate and the systolic blood pressure.
Document:
Reference Id:
376
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