Heidelberg 2015 – wissenschaftliches Programm

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A: Fachverband Atomphysik

A 9: Poster: Interaction with VUV and X-ray light I

A 9.2: Poster

Montag, 23. März 2015, 17:00–19:00, C/Foyer

X-ray movie of light induced dynamics in free nano particles — •Mario Sauppe1, Leonie Flückiger1, Jan P. Müller1, Tais Gorkhover1, 2, Daniel Rolles3, Benjamin Erk3, Rolf Treusch3, Authors as in4, Thomas Möller1, and Daniela Rupp11IOAP, TU Berlin — 2LCLS, SLAC — 3DESY — 4see [2]

Naturally grown nanostructures like biological particles and clusters have an individual, complex and often non-reproducible structure. By using brilliant light pulses from short wavelength free-electron lasers, coherent diffraction imaging of single particles opens a new route to reveal the structures of such non-crystallizables targets [1].
We introduce a novel method to directly image the structural changes of the particles by recording a two-frame movie . Two separate images show the intact particle as well as the same particle at a later stage with the induced structural changes. The required double x-ray pulses are produced by a novel delay stage DESC soon available for users at the free-electron laser FLASH in Hamburg. The multilayer-based unit will be able to deliver x-ray double pulses with delays from 0 fs up to 600 ps. DESC will be set up as a part of the permanent endstation at FLASH, CAMP [2] including also KB optics for extremely tight focusing.
[1] M. M. Seibert et al., Nature 470, 78 (2011).
[2] L. Strüder et al., Nucl. Instr. Meth. Phys. Res. A 614 (2010) 483.

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