Rostock 2019 – wissenschaftliches Programm
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MO: Fachverband Molekülphysik
MO 12: High Resolution Spectroscopy and Precision Experiments
MO 12.8: Vortrag
Mittwoch, 13. März 2019, 12:15–12:30, S HS 002 Biologie
The observation of non-adiabatic alignment of gas-phase molecules via an adapted opto-galvanic technique. — Christian Matthaei1,2, •Matthew S. Robinson1, and Markus Gühr1 — 1Institut für Physik und Astronomie, Universität Potsdam, Potsdam, Germany — 2Current Address: Institut für Physikalische und Theoretische Chemie, Julius-Maximilians-Universität Würzburg, Germany
We have developed a new method for observing the non-adiabatic alignment of gas-phase molecules via an adapted opto-galvanic technique, in which the critical components of the detector are an oscilloscope and a 9V battery. In this talk I will discuss how we were able to observe the rotational wavepacket revivals of N2 and O2 molecules in a near-atmospheric pressure air mixture, after excitation by an ultrafast laser pulse, with high precision using this technique.