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Description
Part I: Laser beams under tight focusing conditions
Off-axis parabolic mirrors are commonly used in high-power laser facilities for a variety of purposes, as they are able to focus laser pulses to relativistic intensities. Particularly, in the laser interaction with plasma or solids, it is highly desirable to have precise knowledge of the spatial and temporal structures of the incident laser pulse. Therefore, field distortion effects related to the use of an OAP mirror under tight focusing conditions by employing the full Stratton-Chu vector diffraction theory are presented.
Part II: Electron charge diagnostics in a laser-plasma environment
Laser-plasma accelerators are gradually gaining importance in various fields, such as medicine, due to their ability to produce very high electron beams. Because of the strict conditions put on the quality of generated electron beams, precise diagnostic tools are required. Regarding the electron charge, integrating current transformers (ICTs) are commonly used for their non-invasive nature. However, due to the transient electromagnetic waves created in the laser-plasma interaction, any electronic device in close proximity can be compromised. Therefore, an experimental investigation on the ICT capabilities in a harsh laser-plasma environment was conducted, and the results are presented.
