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THz Thickness Characterization of Plastic Sheets Including Dispersion

Terahertz time-domain spectroscopy has been attracted numerous attention due to its nondestructively, non-ironically and high penetration toward non- or semi-conductive material. In this project, reflection spectra as well as advanced signal-post processing techniques have been applied to characterization the thickness of plastic sheets. Moreover, the nature of frequency-dependent dispersion is also discussed based on transmission spectra.