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We apply single shot THz Time Domain Spectroscopy to control glass fiber reinforced plastics that were machined during their production. The THz imaging reveals that the mechanical processing as hole punching introduced significant modifications to the composite structures, also beyond the directly impacted region. These changes can be precisely localized and further characterized in order to classify...
We demonstrate imaging with a single-shot THz Time Domain spectrometer for the rapid, but precise location and characterization of defects in an adhesive bond.
Many potential applications of THz-Time Domain Spectroscopy in science or industry call for highest acquisition speed and stability. Our approach of single-shot detection provides the full temporal information on the ultrashort THz electric field with variable window of several 10 picoseconds at kHz repetition rates. We use this technique to image moving objects and to study transient phenomena.
A new simple time-domain THz spectrometer based on a single-shot balanced detection of the electric field is presented. It allows for the recording of the full temporal THz profile at kHz acquisition rates. Its performances are demonstrated by measuring the fast drying process of acetone on Teflon.
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