Hannover 2016 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 58: Poster: Quantum Optics and Photonics IV
Q 58.60: Poster
Donnerstag, 3. März 2016, 16:30–19:00, Empore Lichthof
Experimental study of photoelectronic angular distributions using velocity map imaging: Intensity and CEP effects — •Eike Lübking1, Thomas Gaumnitz2, Christoph Vorndamme1, Tamas Nagy1, Torsten Hartmann1, Uwe Morgner1, Thorsten Uphues2, and Milutin Kovacev1 — 1Institut für Quantenoptik, Leibniz Universität Hannover, Welfengarten 1, 30167 Hannover, Germany — 2Center for Free-Electron Laser Science, Universität Hamburg, Luruper Chausee 149, 22761 Hamburg, Germany
A Velocity Map Imaging Spectrometer (VMIS) was used to study the angular and energy distributions of photoelectrons created in the ultrashort-pulse ionization of xenon and argon.
The intensity dependence of these distributions can be utilised to gain insight into the diverse participating processes, e.g. channel switching and resonant and non-resonant ionization.
By using a CEP-stabilized laser source generating few-cycle pulses, we were also able to study the influence of the carrier-envelope phase (CEP) on the photoelectronic angular distributions.