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Published June 25, 1993 | public
Journal Article

Ultrafast electron diffraction. Velocity mismatch and temporal resolution in crossed-beam experiments


The time resolution of crossed-beam experiments is explicitly related to velocity mismatch and other beam parameters. Application of this general treatment to ultrafast electron diffraction reveals that a time resolution of approximately 1.4 picoseconds can be achieved under conventional conditions. It is possible to reduce this value by increasing the electron energy, varying the angle between the electron and laser pulses, and reducing the focal width of the laser and the size of the molecular beam.

Additional Information

© 1993 Elsevier B.V. Received 14 April 1993. National Science Foundation Predoctoral Fellow. Contribution No. 8772. The authors would like to thank Dr. Marcos Dantus and Dr. Scott Kim for initial discussions about the effects of velocity mismatch, and Mr. Soren Pedersen for a thorough proofreading of this manuscript.

Additional details

August 20, 2023
October 20, 2023