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Science 11 October 1996:
Vol. 274. no. 5285, pp. 153 - 0
DOI: 10.1126/science.274.5285.153f
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Although x-ray methods can provide very high structural resolution, it has been difficult to generate ultrashort x-ray pulses, and high-resolution dynamical studies (on the order of 100 femtoseconds, or roughly one molecular vibration) have generally been limited to optical spectroscopy. Schoenlein et al. (p. 236) have demonstrated the production of 300-femtosecond x-rays with a wavelength of 0.4 angstroms. They scattered intense infrared laser pulses off a beam of highly relativistic electrons in an accelerator. In a Perspective, Eisenberger and Suckewer (p. 201) discuss how these results relate to other approaches for generating short x-ray pulses.




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Science. ISSN 0036-8075 (print), 1095-9203 (online)