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Femtosecond and nanometre visualization of structural dynamics in superheated nanoparticles

Gorkhover, Tais ; Schorb, Sebastian ; Coffee, Ryan ; Adolph, Marcus ; Foucar, Lutz ; Rupp, Daniela ; Aquila, Andrew ; Bozek, John D. ; Epp, Sascha W. ; Erk, Benjamin ; Gumprecht, Lars ; Holmegaard, Lotte ; Hartmann, Andreas ; Hartmann, Robert ; Hauser, Günter ; Holl, Peter ; Hömke, Andre ; Johnsson, Per ; Kimmel, Nils ; Kühnel, Kai-Uwe ; Messerschmidt, Marc ; Reich, Christian ; Rouzée, Arnaud ; Rudek, Benedikt ; Schmidt, Carlo ; Schulz, Joachim ; Soltau, Heike ; Stern, Stephan ; Weidenspointner, Georg ; White, Bill ; Küpper, Jochen ; Strüder, Lothar ; Schlichting, Ilme ; Ullrich, Joachim ; Rolles, Daniel ; Rudenko, Artem ; Möller, Thomas ; Bostedt, Christoph

Nature photonics, 2016-02, Vol.10 (2), p.93-97 [Periódico revisado por pares]

London: Nature Publishing Group

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Título:
Femtosecond and nanometre visualization of structural dynamics in superheated nanoparticles
Autor: Gorkhover, Tais ; Schorb, Sebastian ; Coffee, Ryan ; Adolph, Marcus ; Foucar, Lutz ; Rupp, Daniela ; Aquila, Andrew ; Bozek, John D. ; Epp, Sascha W. ; Erk, Benjamin ; Gumprecht, Lars ; Holmegaard, Lotte ; Hartmann, Andreas ; Hartmann, Robert ; Hauser, Günter ; Holl, Peter ; Hömke, Andre ; Johnsson, Per ; Kimmel, Nils ; Kühnel, Kai-Uwe ; Messerschmidt, Marc ; Reich, Christian ; Rouzée, Arnaud ; Rudek, Benedikt ; Schmidt, Carlo ; Schulz, Joachim ; Soltau, Heike ; Stern, Stephan ; Weidenspointner, Georg ; White, Bill ; Küpper, Jochen ; Strüder, Lothar ; Schlichting, Ilme ; Ullrich, Joachim ; Rolles, Daniel ; Rudenko, Artem ; Möller, Thomas ; Bostedt, Christoph
Assuntos: Atom and Molecular Physics and Optics ; Atom- och molekylfysik och optik ; Dynamics ; Femtosecond ; Fysik ; Heating ; Nanostructure ; Natural Sciences ; Naturvetenskap ; Physical Sciences ; Softening ; Visualization ; X-rays
É parte de: Nature photonics, 2016-02, Vol.10 (2), p.93-97
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
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USDOE
AC02-76SF00515
Descrição: The ability to observe ultrafast structural changes in nanoscopic samples is essential for understanding non-equilibrium phenomena such as chemical reactions, matter under extreme conditions, ultrafast phase transitions and intense light-matter interactions. Established imaging techniques are limited either in time or spatial resolution and typically require samples to be deposited on a substrate, which interferes with the dynamics. Here, we show that coherent X-ray diffraction images from isolated single samples can be used to visualize femtosecond electron density dynamics. We recorded X-ray snapshot images from a nanoplasma expansion, a prototypical non-equilibrium phenomenon. Single Xe clusters are superheated using an intense optical laser pulse and the structural evolution of the sample is imaged with a single X-ray pulse. We resolved ultrafast surface softening on the nanometre scale at the plasma/vacuum interface within 100 fs of the heating pulse. Our study is the first time-resolved visualization of irreversible femtosecond processes in free, individual nanometre-sized samples.
Editor: London: Nature Publishing Group
Idioma: Inglês

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Femtosecond and nanometre visualization of structural dynamics in superheated nanoparticles

London: Nature Publishing Group

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