Dresden 2011 – wissenschaftliches Programm
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MO: Fachverband Molekülphysik
MO 10: Cluster
MO 10.8: Vortrag
Dienstag, 15. März 2011, 12:15–12:30, MER 02
XUV fluorescence spectroscopy of clusters in intense laser fields — •Lasse Schroedter1, Andreas Kickermann1, Andreas Przystawik1, Marcus Adolph2, Tais Gorkhover2, Maria Krikunova2, Maria Müller2, Daniela Rupp2, Thomas Möller2, and Tim Laarmann1 — 1Deutsches Elektronensynchrotron (DESY) Photon Science, Hamburg, Germany — 2Institut für Optik und Atomare Physik, Technische Universität Berlin, Germany
Clusters in intense laser fields have attracted considerable interest in the last decades [1]. The most common way to study the interaction is by spectroscopy of the resulting charged particles. However, there is evidence that the measured mass spectra do not reflect the charge states that are initially formed, because charge recombination and extraction field effects are not accessible with these methods [2]. In this contribution, we present an experiment to analyze the initially produced charge states by their fluorescence. A spectrometer which is sensitive from 10 to 110 nm in the extreme ultraviolet spectral range (XUV) was designed to overcome the experimental challenges such as low fluorescence yield and low target density.
[1] Fennel et al., Laser-driven nonlinear cluster dynamics, Rev. Mod. Phys. 82 (2010) 1793
[2] Hoener et al., Charge recombination in soft x-ray laser produced nanoplasmas, J. Phys. B: At. Mol. Opt. Phys. 41 (2008) 181001