IEICE Electronics Express
Online ISSN : 1349-2543
ISSN-L : 1349-2543
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Millimeter-wave ellipsometry of human skin based on photonics technology
Hiroshi YamamotoHiroshi ItoMakoto Noshiro
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JOURNAL FREE ACCESS

2010 Volume 7 Issue 13 Pages 964-968

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Abstract

We have established the millimeter-wave ellipsometry based on the photonics technology, and applied it for measuring the complex dielectric constant of human skin in vivo in 90-140GHz band. The millimeter wave is generated by a uni-traveling-carrier photodiode using optical heterodyning of two 1.55-µm light signals. The measured dielectric constant is fitted well with the Debye relaxation model.

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© 2010 by The Institute of Electronics, Information and Communication Engineers
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