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Nature 448, 651-652 (9 August 2007) | doi:10.1038/448651a; Published online 8 August 2007
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Femtophysics: Double vision
Andrea Cavalleri1
Abstract
By cunningly diffracting X-rays twice from an exploding nanometre-scale sphere, holographic images can be made of a tiny system evolving at lightning speed. The technique could be used to picture atomic dynamics.
On page 676 of this issue1, Chapman et al. demonstrate how coherent, ultrafast X-ray pulses from a free-electron laser2 can be used to yield a series of femtosecond-resolved holographic images of an evolving nanometre-scale object. This exquisite resolution in both time and space brings us closer to a long-sought-after goal — the ability to observe atomic-scale processes as they happen.
- Andrea Cavalleri is in the Department of Physics, Clarendon Laboratory, University of Oxford, Parks Road, Oxford OX1 3PU, UK.
Email: a.cavalleri1@physics.ox.ac.uk
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