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Title:
Femtosecond X-ray Pulses at 0.4 overset{circ}{mathrm A} Generated by 90^circ Thompson Scattering: A Tool for Probing the Structural Dynamics of Materials
Authors:
Schoenlein, R. W.; Leemans, W. P.; Chin, A. H.; Volfbeyn, P.; Glover, T. E.; Balling, P.; Zolotorev, M.; Kim, K.-J.; Chattopadhyay, S.; Shank, C. V.
Publication:
Science, Volume 274, Issue 5285, pp. 236-238
Publication Date:
10/1996
Origin:
JSTOR
DOI:
10.1126/science.274.5285.236
Bibliographic Code:
1996Sci...274..236S

Abstract

Pulses of x-rays 300 femtoseconds in duration at a wavelength of 0.4 angstroms (30,000 electron volts) have been generated by 90^circ Thomson scattering between infrared terawatt laser pulses and highly relativistic electrons from an accelerator. In the right-angle scattering geometry, the duration of the x-ray burst is determined by the transit time of the laser pulse across the ~90-micrometer waist of the focused electron beam. The x-rays are highly directed (~0.6^circ divergence) and can be tuned in energy. This source of femtosecond x-rays will make it possible to combine x-ray techniques with ultrafast time resolution to investigate structural dynamics in condensed matter.
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Physics
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