1. Researchers use non-visible imaging approach to reveal secrets of ancient Egyptian mummies

    Researchers use non-visible imaging approach to reveal secrets of ancient Egyptian mummies

    In addition to the multispectral camera, the team of researchers utilized optical coherence tomography (OCT), which uses similar wavelengths to multispectral imaging, but works at a much smaller scale, according to UCL. The system is arranged so that light travels a similar distance along two paths, one a reference arm and the other interrogating the sample. As light penetrates the sample and reflects back off different layers, the distance it travels changes. This change in distance is measured precisely using interferometry. It can image to depths of around a millimeter and give micrometer resolution, thus making it suitable for imaging ...

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