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MO: Fachverband Molekülphysik

MO 9: Femtosecond Spectroscopy 2

MO 9.3: Talk

Tuesday, March 24, 2015, 15:15–15:30, PH/HS1

Ultrafast dissociation of molecular oxygen excited at 162 nm wavelength — •Thomas Gebert, Dimitrios Rompotis, Marek Wieland, Fawad Karimi, Armin Azima, and Markus Drescher — Institut für Experimentalphysik, Universität Hamburg, Deutschland

Ultrafast dissociation of excited gas-phase oxygen molecules is studied through vacuum-ultraviolet two photon ionization in an interferometric VUV pump-probe experiment. Using powerful fifth harmonic radiation from a Ti:Sa laser with up to 1 uJ pulse energy and a pulse duration of 18 femtosecond at 162 nanometre wavelength a precision of below 2 femtosecond is achieved.