Physicists make first 'molecular movie' of light

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Femtosecond x-ray pulses are used to detect the ultra-fast motion of charged atoms in a THz light field. Credit: University of Oxford
Femtosecond x-ray pulses are used to detect the ultra-fast motion of charged atoms in a THz light field. Credit: University of Oxford

Scientists have made the first ‘molecular movie’ of the elementary interaction between light and matter. They measured what happens on a microscopic level when light travels through a medium in a collaborative project involving Oxford University, the Lawrence Berkeley Laboratory in California, and the Massachusetts Institute of Technology.


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