Sequential femtosecond X-ray imaging

被引：0

作者：

Günther C.M. ^{[1
,2
]}

Pfau B. ^{[1
,2
]}

Mitzner R. ^{[2
,3
]}

Siemer B. ^{[3
]}

Roling S. ^{[3
]}

Zacharias H. ^{[3
]}

Kutz O. ^{[2
]}

Rudolph I. ^{[2
]}

Schondelmaier D. ^{[2
]}

Treusch R. ^{[4
]}

Eisebitt S. ^{[1
,2
]}

机构：

[1] Institut für Optik und Atomare Physik, Technische Universität Berlin, 10623 Berlin

[2] Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, 14109 Berlin

[3] Physikalisches Institut, Westfäche Wilhelms-Universität Münster, 48149 Münster

[4] HASYLAB at DESY, 22607 Hamburg

来源：

Nature Photonics | 2011年 / 5卷 / 2期

关键词：

D O I：

10.1038/nphoton.2010.287

中图分类号：

学科分类号：

摘要：

Recording a 'molecular movie' with atomic spatial resolution on the femtosecond timescale set by atomic motion can be considered the ultimate goal of dynamic real-space imaging. Free-electron X-ray lasers, with their (sub)nanometre wavelength, femtosecond pulse duration and high brilliance, fuel the hope that this may ultimately become possible. Single-shot still pictures with sub-100 nm resolution achieved during femtosecond exposures have recently been demonstrated1-3. A femtosecond time-lapse movie requires a sequence of independent images taken with a controllable time delay. As a key step towards achieving a molecular movie, we demonstrate a holographic imaging approach capable of recording two fully independent images with a variable time delay over the entire femtosecond regime. The concept overcomes the fundamental readout time limitations of two-dimensional area detectors, as two subsequent X-ray holograms of a sample can be superimposed within one detector exposure and yet be unambiguously disentangled to reconstruct two independent images. © 2011 Macmillan Publishers Limited. All rights reserved.

引用

页码：99 / 102

页数：3

共 18 条

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