With new laser sources and detectors coming onto the market, terahertz imaging is starting to become a valuable tool for non-destructive testing, process control and quality inspection.
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Duling, I., Zimdars, D. Revealing hidden defects. Nature Photon 3, 630–632 (2009). https://doi.org/10.1038/nphoton.2009.206
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DOI: https://doi.org/10.1038/nphoton.2009.206
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