Berlin 2005 – scientific programme

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MO: Molekülphysik

MO 22: Poster I

MO 22.12: Poster

Saturday, March 5, 2005, 10:30–12:30, Poster HU

Angular resolved cluster photoelectron spectroscopy — •Christof Bartels, Christian Hock, and Bernd v.Issendorff — Fakultät für Physik, Universität Freiburg, Stefan-Meier-Str. 21, 79104 Freiburg

Measuring the angular distribution of photoelectrons after photoionization or detachment yields information about the nature of the electron orbitals as well as the excitation process. A new imaging spectrometer has been constructed which can be used for high resolution angular resolved photoelectron spectroscopy on size-selected cluster anions and cations. It will be employed for a number of different studies. Firstly it is planned to do nanosecond spectroscopy on metal and semiconductor clusters, in order to study details of the electronic structure of this particles. Secondly it will be used for femtosecond spectroscopy of metal clusters, in order to clarify details of multiphoton electron detachment as well as to measure ultrafast relaxation times. First results are presented.