Title :
Millimeter-/terahertz-wave measurements for biological materials using photonically generated continuous waves
Author :
Ito, Hiroshi ; Yamamoto, Hiroshi
Author_Institution :
Center for Natural Sci., Kitasato Univ., Sagamihara, Japan
Abstract :
This paper describes two promising millimeter-/terahertz-wave measurement techniques suitable for biological substances. For the reflection-geometry imaging, a planar circulator circuit is developed and integrated into a photonic transceiver module operating in the J-band. The fabricated module is applied to in-vivo imaging of a human finger at 270 GHz. For obtaining more qualitative information, a photonic millimeter-wave ellipsometry system is developed for measuring the complex relative dielectric constant of the sample. It is successfully applied to in-vivo measurement of human skin in the F-band.
Keywords :
biomedical imaging; ellipsometry; integrated optics; millimetre wave measurement; optical transceivers; permittivity measurement; skin; terahertz wave imaging; biological material; frequency 10 GHz to 20 GHz; frequency 270 GHz; frequency 90 GHz to 140 GHz; human finger; human skin measurement; millimeter wave measurement technique; photonic millimeter wave ellipsometry system; photonic transceiver module; photonically generated continuous wave; planar circulator circuit; reflection-geometry imaging; relative dielectric constant measurement; terahertz wave measurement technique; Circulators; Dielectric constant; Ellipsometry; Humans; Imaging; Photonics; Transceivers;
Conference_Titel :
General Assembly and Scientific Symposium, 2011 XXXth URSI
Conference_Location :
Istanbul
Print_ISBN :
978-1-4244-5117-3
DOI :
10.1109/URSIGASS.2011.6050621
