Reflection-Geometry Measurements of Biological Materials Using Photonically Generated Millimeter Waves

Hiroshi YAMAMOTO; Hiroshi ITO

doi:10.1587/transele.E96.C.235

Reflection-Geometry Measurements of Biological Materials Using Photonically Generated Millimeter Waves

Hiroshi YAMAMOTO, Hiroshi ITO

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This paper describes two promising millimeter-wave measurement techniques suitable for biological materials. One is reflection-geometry imaging using a low-coherence signal, and the other is millimeter-wave ellipsometry. Imaging porcine tissue during the desiccation process, we found the temporal variation of the reflection intensity to be well explained by an exponential decrease of the relative dielectric constant. Ellipsometry results showed that the complex relative dielectric constant also decreased exponentially with time during the desiccation process and that for bovine tissue the gradients for the real and imaginary parts of the constant were different. The implications of these results on the distribution of water in biological tissues are discussed.

Publication: IEICE TRANSACTIONS on Electronics Vol.E96-C No.2 pp.235-240

Publication Date: 2013/02/01

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Online ISSN: 1745-1353

DOI: 10.1587/transele.E96.C.235

Type of Manuscript: Special Section PAPER (Special Section on Recent Progress in Microwave and Millimeter-Wave Photonics Technology)

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Hiroshi YAMAMOTO, Hiroshi ITO, "Reflection-Geometry Measurements of Biological Materials Using Photonically Generated Millimeter Waves" in IEICE TRANSACTIONS on Electronics, vol. E96-C, no. 2, pp. 235-240, February 2013, doi: 10.1587/transele.E96.C.235.
Abstract: This paper describes two promising millimeter-wave measurement techniques suitable for biological materials. One is reflection-geometry imaging using a low-coherence signal, and the other is millimeter-wave ellipsometry. Imaging porcine tissue during the desiccation process, we found the temporal variation of the reflection intensity to be well explained by an exponential decrease of the relative dielectric constant. Ellipsometry results showed that the complex relative dielectric constant also decreased exponentially with time during the desiccation process and that for bovine tissue the gradients for the real and imaginary parts of the constant were different. The implications of these results on the distribution of water in biological tissues are discussed.
URL: https://globals.ieice.org/en_transactions/electronics/10.1587/transele.E96.C.235/_p

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@ARTICLE{e96-c_2_235,
author={Hiroshi YAMAMOTO, Hiroshi ITO, },
journal={IEICE TRANSACTIONS on Electronics},
title={Reflection-Geometry Measurements of Biological Materials Using Photonically Generated Millimeter Waves},
year={2013},
volume={E96-C},
number={2},
pages={235-240},
abstract={This paper describes two promising millimeter-wave measurement techniques suitable for biological materials. One is reflection-geometry imaging using a low-coherence signal, and the other is millimeter-wave ellipsometry. Imaging porcine tissue during the desiccation process, we found the temporal variation of the reflection intensity to be well explained by an exponential decrease of the relative dielectric constant. Ellipsometry results showed that the complex relative dielectric constant also decreased exponentially with time during the desiccation process and that for bovine tissue the gradients for the real and imaginary parts of the constant were different. The implications of these results on the distribution of water in biological tissues are discussed.},
keywords={},
doi={10.1587/transele.E96.C.235},
ISSN={1745-1353},
month={February},}

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TY - JOUR
TI - Reflection-Geometry Measurements of Biological Materials Using Photonically Generated Millimeter Waves
T2 - IEICE TRANSACTIONS on Electronics
SP - 235
EP - 240
AU - Hiroshi YAMAMOTO
AU - Hiroshi ITO
PY - 2013
DO - 10.1587/transele.E96.C.235
JO - IEICE TRANSACTIONS on Electronics
SN - 1745-1353
VL - E96-C
IS - 2
JA - IEICE TRANSACTIONS on Electronics
Y1 - February 2013
AB - This paper describes two promising millimeter-wave measurement techniques suitable for biological materials. One is reflection-geometry imaging using a low-coherence signal, and the other is millimeter-wave ellipsometry. Imaging porcine tissue during the desiccation process, we found the temporal variation of the reflection intensity to be well explained by an exponential decrease of the relative dielectric constant. Ellipsometry results showed that the complex relative dielectric constant also decreased exponentially with time during the desiccation process and that for bovine tissue the gradients for the real and imaginary parts of the constant were different. The implications of these results on the distribution of water in biological tissues are discussed.
ER -