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.
Phase Effects In Terahertz Pulsed Imaging
01.09.2006
1195178 byte
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
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