Title :
Phase Effects In Terahertz Pulsed Imaging
Author :
Reed, S. ; Berry, E. ; Stringer, M.R. ; Davies, A.G. ; Linfield, E.H.
Author_Institution :
Univ. of Leeds, Leeds
Abstract :
We have generated images of five tooth slices and three plastic step-wedges over a range of frequencies contained within a broadband terahertz pulse. It is observed that the boundaries between different types of materials (or thickness) are frequency dependent. A quantitative model of such image artefacts, involving the parameters of radiation frequency, sample thickness and material refractive indices, successfully reproduces the experimental data.
Keywords :
refractive index; submillimetre wave imaging; broadband terahertz pulse; image artefacts; material refractive indices; phase effects; plastic step-wedges; radiation frequency; terahertz pulsed imaging; tooth slices; Biomedical imaging; Focusing; Frequency measurement; Image generation; Optical imaging; Optical refraction; Pulse measurements; Refractive index; Teeth; Thickness measurement;
Conference_Titel :
Infrared Millimeter Waves and 14th International Conference on Teraherz Electronics, 2006. IRMMW-THz 2006. Joint 31st International Conference on
Conference_Location :
Shanghai
Print_ISBN :
1-4244-0400-2
Electronic_ISBN :
1-4244-0400-2
DOI :
10.1109/ICIMW.2006.368769
