Phase Effects In Terahertz Pulsed Imaging

Phase Effects In Terahertz Pulsed Imaging

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 art...

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Bibliographische Detailangaben
Hauptverfasser: Reed, S., Berry, E., Stringer, M.R., Davies, A.G., Linfield, E.H.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Biomedical imaging
Focusing
Frequency measurement
Image generation
Optical imaging
Optical refraction
Pulse measurements
Refractive index
Teeth
Thickness measurement
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Beschreibung
Zusammenfassung: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.
ISSN:2162-2027
DOI:10.1109/ICIMW.2006.368769