Gerard Mourou and Steven Williamson at the University of Rochester have reported the demonstration of a new technique that makes possible the direct observation of laser‐induced structural changes and phase transitions in a crystal lattice on a picosecond time scale. They have been able to observe electron diffraction patterns with electron bursts photoelectrically generated by 30‐picosecond laser pulses. With this technique Mourou sees no impediment to the production of electron diffraction patterns time resolved to a few hundred femtoseconds.
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© 1983 American Institute of Physics.
1983
American Institute of Physics
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