Ultrafast Imaging and the Phase Problem for Inelastic X-Ray Scattering

被引：16

作者：

Abbamonte, Peter ^{[1
]}

Wong, Gerard C. L. ^{[1
]}

Cahill, David G. ^{[1
]}

Reed, James P. ^{[1
]}

Coridon, Robert H. ^{[1
]}

Schmidt, Nathan W. ^{[1
]}

Lai, Ghee Hwee ^{[1
]}

Il Joe, Young ^{[1
]}

Casa, Diego ^{[2
]}

机构：

[1] Univ Illinois, Frederick Seitz Mat Res Lab, Urbana, IL 61801 USA

[2] Argonne Natl Lab, Adv Photon Source, Argonne, IL USA

来源：

ADVANCED MATERIALS | 2010年 / 22卷 / 10期

关键词：

LIQUID WATER; COLLECTIVE DYNAMICS; ENERGY RESOLUTION; SPECTROSCOPY; BOND; RECONSTRUCTION; SCIENCE;

D O I：

10.1002/adma.200904098

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A new method for imaging ultrafast dynamics in condensed matter using inelastic X-ray scattering (IXS) is described. Using the concepts of causality and irreversibility a general solution to the inverse scattering problem (or "phase problem") for IXS is illustrated, which enables direct imaging of dynamics of the electron density with resolutions of similar to 1 attosecond (10(-18) s) in time and <1 angstrom in space. This method is not just Fourier transformation of the IXS data, but a means to impose causality on the data and reconstruct the charge propagator. The method can also be applied to inelastic electron or neutron scattering. A general outline of phenomena that can and cannot be studied with this technique and an outlook for the future is provided.

引用

页码：1141 / 1147

页数：7

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