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Characterization of a Xenon-Recycling-System for an Extreme-Ultraviolet Frequency Comb


Hector,  Roman Constantin
Division Prof. Dr. Thomas Pfeifer, MPI for Nuclear Physics, Max Planck Society;

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Hector, R. C. (2022). Characterization of a Xenon-Recycling-System for an Extreme-Ultraviolet Frequency Comb. Bachelor Thesis, Ruprecht-Karls-Universität, Heidelberg.

Cite as: https://hdl.handle.net/21.11116/0000-000D-0C55-7
To perform precision spectroscopy of highly charged ions, an extreme-ultraviolet
frequency comb has been developed at the Max-Planck-Institute for Nuclear
Physics in Heidelberg. By generating high-harmonics in an enhancement cavity,
the comb structure of a pulsed laser in the near-infrared spectrum is transferred
to the extreme-ultraviolet spectrum, which necessitates the use of rare noble
gases such as xenon. To reduce their consumption, a gas recycling system was
designed and its functionality was investigated in this work. For this purpose, an
automatic readout system was constructed, which allows reliable measurement
of high pressures.
In addition, an alignment laser unit was assembled, which allows the orientation
of deflecting and focusing mirrors in the beamline with the help of a counterpropagating
optical laser necessary for spectroscopy, even before the generation
of high harmonics.
The goal of the experimental setup is to realize spectroscopy with highly charged
ions trapped in the cryogenic Paul trap of the CryPTEx SC system, which will
be linked to the cavity with the beamline as a connection in the future.