Researchers around our former colleague Prof. Peter Baum from the University Konstanz have succeeded in filming the interactions of light and matter in an electron microscope with attosecond time resolution.
Until now, it has been very difficult to directly visualize these extremely fast processes in space and time. However, the physicists from the Light and Matter Group have now succeeded in recording movies with attosecond time resolution in a transmission electron microscope, providing new insights into the functionality of nanomaterials and dielectric meta-atoms. They recently published their results in the scientific journal Nature:
Attosecond electron microscopy of sub-cycle optical dynamics

Picture: Experimental setup of the attosecond electron microscope.
Photo credit: Dr. Gillian Kiliani, University of Konstanz