Title :
THz imaging of skin tissue — Exploiting the strong reflectivity of liquid water
Author :
Brown, E.R. ; Taylor, Z.D. ; Tewari, P. ; Singh, R.S. ; Culjat, M.O. ; Bennett, D.B. ; Grundfest, W.S.
Author_Institution :
Depts. of Phys. & Electr. Eng., Wright State Univ., Dayton, OH, USA
Abstract :
We present a novel system for imaging burns and other lesions of human skin tissue utilizing the acute sensitivity of THz radiation to water concentration. It is a THz impulse radar that carries out reflective, 2D imaging with a photoconductive-switch wideband illuminator, a Schottky-rectifying gated receiver, and mechanical scanning. It has been used to image burns with ~2 mm spatial resolution in ≈5 min over 1 KPixel and 1 sq inch.
Keywords :
Schottky diodes; biomedical equipment; biomedical imaging; photoconducting switches; radar imaging; rectifying circuits; skin; terahertz wave imaging; Schottky rectifying gated receiver; THz impulse radar; burn imaging; lesion imaging; liquid water reflectivity; mechanical scanning; photoconductive switch wideband illuminator; reflective 2D imaging; skin tissue THz imaging; Imaging; Optical switches; Radar imaging; Reflection; Skin;
Conference_Titel :
Infrared Millimeter and Terahertz Waves (IRMMW-THz), 2010 35th International Conference on
Conference_Location :
Rome
Print_ISBN :
978-1-4244-6655-9
DOI :
10.1109/ICIMW.2010.5612359
