ausblenden:
Schlagwörter:
-
MPINP:
Research group J. Evers – Division C. H. Keitel
Zusammenfassung:
Whenever working with polarized light, there might be situations, in which
another than the given polarization is required. In the optical regime, there
exist wave plates, which are able to convert polarizations. The working principle
of such wave plates is based on relative differences of refractive indices.
Since it is hard to achieve sufficiently different refractive indices for X-rays, it
is diffcult to mimic this approach in the X-ray regime.
In this thesis, we propose a new approach to produce the necessary phase
shift in the X-ray regime, by employing nuclear forward scattering. The suggested
setup has the advantage, that the polarization can be dynamically
controlled.
First, we discuss the working principle of our new approach. This includes
analytical explanations as well as numerical simulations and optimization with
the python-package pynuss. Subsequently, further applications such as circular
polarization filters,
λ/2 -wave plates, fast light switches and precise displacement
measurements will be presented. We conclude this thesis by a comparison
with existing optical elements.
