Erlangen 2018 – wissenschaftliches Programm
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MO: Fachverband Molekülphysik
MO 24: Experimental Techniques
MO 24.6: Vortrag
Freitag, 9. März 2018, 11:45–12:00, PA 2.150
Generation, Shaping, and Complete Characterization of Complex Mid-Infrared-fs Laser Pulses — •Markus Alexander Jakob1,2, Mark Prandolini3, Robert Riedel4, Giulio Maria Rossi2,5, Michael Schulz4, and Tim Laarmann1,2 — 1The Hamburg Centre for Ultrafast Imaging, Universität Hamburg, 22761 Hamburg — 2Deutsches Elektronen-Synchrotron, 22607 Hamburg — 3Institut für Experimentalphysik, Universität Hamburg — 4Class 5 Photonics GmbH, 22607 Hamburg — 5Center for Free-Electron Laser Science, 22607 Hamburg
Shape-optimized Mid-IR laser pulses at a central wavelength of around 10 µm represent a genuine tool to study coupling of different vibrational modes in complex molecular systems, as well as to manipulate charge and energy transport mechanisms and might even be used to influence catalytic behaviour. A scheme will be presented, that enables for generation of wavelength tunable and CEP stable Mid-IR laser pulses, their arbitrary shaping by means of an acousto-optical modulator, and their full characterization. These provide an excellent toolbox to address specific vibrational modes in large molecular systems and to influence and steer associated dynamics in the electronic ground state. This is where chemistry typically takes place.