Mainz 2017 – wissenschaftliches Programm
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MO: Fachverband Molekülphysik
MO 3: Diffraction and Coherences (with A)
MO 3.1: Hauptvortrag
Montag, 6. März 2017, 17:00–17:30, N 6
Single-shot coherent diffractive imaging of individual clusters using a high harmonic source — Nils Monserud1, Daniela Rupp2, Bruno Langbehn2, Mario Sauppe2, Julian Zimmermann2, Yevheniy Ovcharenko2, Thomas Möller2, Fabio Frassetto3, Luca Poletto3, Andrea Trabattoni4, Francesca Calgari5, Mauro Misoli4,5, Katharina Sander6, Christian Peltz6, Marc J.J. Vrakking1, Thomas Fennel6, and •Arnaud Rouzée1 — 1Max-Born-Institut, Berlin, Germany — 2Institut für Optik und Atomare Physik, Technische Universität Berlin, Berlin, Germany — 3CNR, Instituto di Fotonica e Nanotecnologie Padova, Padova, Italy — 4Department of Physics, Politecnico di Milano, Milano, Italy — 5CNR, Instituto di Fotonica e Nanotecnologie Milano, Milano, Italy — 6Institut für Physik, Universität Rostock, Rostock, Germany
We present a single-shot coherent diffractive imaging (CDI) experiment based on high harmonic generation of individual He nanodroplets performed with a table-top femtosecond extreme ultraviolet (XUV) light source. Using a laser based HHG source, we are able to demonstrate for the first time the possibility to extract the shape, size, and orientation of free-flying nanoparticles. While most of the recorded diffraction patterns are assigned to the formation of spherical nanodroplets, we observed as well non-point symmetric diffraction patterns which are uniquely assigned to the formation of prolate, pill-shaped He-nanodroplets. Our experiment paves the way towards time-resolved imaging of ultrafast electron motion in individual clusters and nanoparticles with attosecond time resolution.