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  Tomographische Rekonstruktion dreidimensionaler Photoelektronenverteilungen mittels intra-cavity Velocity Map Imaging

Wössner, V. (2020). Tomographische Rekonstruktion dreidimensionaler Photoelektronenverteilungen mittels intra-cavity Velocity Map Imaging. Bachelor Thesis, Ruprecht-Karls-Universität, Heidelberg.

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Item Permalink: https://hdl.handle.net/21.11116/0000-0007-5AD5-4 Version Permalink: https://hdl.handle.net/21.11116/0000-0007-5AD6-3
Genre: Thesis

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 Creators:
Wössner, Valentin1, Author           
Affiliations:
1Division Prof. Dr. Thomas Pfeifer, MPI for Nuclear Physics, Max Planck Society, ou_2025284              

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 Abstract: The invetigation of multiphoton ionization (MPI) in a purely perturbative regime at
low intensities requieres fast data acquisition. Combining a 100 MHz frequency comb
(FC) amplified in a femtosecond enhancement cavity (fsEC) with intra-cavity velocity
map imaging (VMI) technique enables such measurements. This bachelor thesis
deals with tomographic reconstruction of photoelelectron momentum distrubutions,
without the need of any symmetry assumptions. Therefor, a suitable filtered backprojection
(FBP) algorithm was presented and the VMI was successfully characterized.
Due to high intensity sensitivity of MPI a polarization dependency of the intra-cvity
enhancement was investigated and slight deviations of a few percent were found.

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 Dates: 2020
 Publication Status: Accepted / In Press
 Pages: 76 S. : Ill., graph. Darst.
 Publishing info: Heidelberg : Ruprecht-Karls-Universität
 Table of Contents: -
 Rev. Type: -
 Identifiers: -
 Degree: Bachelor

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