Imaging density disturbances in water with a 41.3-attosecond time resolution |
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Authors: | Abbamonte P Finkelstein K D Collins M D Gruner S M |
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Institution: | Department of Physics, Cornell University, Ithaca, New York 14853-2501, USA. |
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Abstract: | We show that the momentum flexibility of inelastic x-ray scattering may be exploited to invert its loss function, allowing real time imaging of density disturbances in a medium. We show the disturbance arising from a point source in liquid water, with a resolution of 41.3 attoseconds (4.13 x 10(-17) s) and 1.27 A (1.27 x 10(-8) cm). This result is used to determine the structure of the electron cloud around a photoexcited chromophore in solution, as well as the wake generated in water by a 9 MeV gold ion. We draw an analogy with pump-probe techniques and suggest that energy-loss scattering may be applied more generally to the study of attosecond phenomena. |
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