Pump-Probe-Messungen an N2-Molekülen am Freie-Elektronen-Laser FLASH in Hamburg

Toppin, Michel-Alexander

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Pump-Probe-Messungen an N₂-Molekülen am Freie-Elektronen-Laser FLASH in Hamburg

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Toppin, Michel-Alexander
Division Prof. Dr. Joachim H. Ullrich, MPI for Nuclear Physics, Max Planck Society;

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Citation

Toppin, M.-A. (2009). Pump-Probe-Messungen an N₂-Molekülen am Freie-Elektronen-Laser FLASH in Hamburg. Diploma Thesis, Ruprecht-Karls-Universität, Heidelberg.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0011-7476-8

Abstract

The experiment introduced in this work used a so called reaction microscopes in connection with the free-electron laser in Hamburg (FLASH) to study the in fluence of very intense UV-radiation of 46 eV and 38 eV photon energy in the region of 10[high12]-10[high14] W/cm2 on the nitrogen molecule N2. Besides the identi cation of various highly charged fragmentation channels and their intensity dependences radial distributions were measured and allowed a reconstruction of the excitation and ionisation pathways. Furthermore a multilayer mirror composed of molybdenum and silicon wa used to perform the rst pump-probe measurements with nitrogen. Strong intensity dependences were detected as well as formerly not observed effects of unknown origin.