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Digital archive of theses discussed at the University of Pisa

 

Thesis etd-03012023-120234


Thesis type
Tesi di dottorato di ricerca
Author
MARASCIULLI, ANDREA
URN
etd-03012023-120234
Thesis title
Toward resonant laser-wakefield excitation with a pulse train generated by a delay mask
Academic discipline
FIS/03
Course of study
FISICA
Supervisors
tutor Dott. Gizzi, Leonida Antonio
supervisore Dott. Labate, Luca Umberto
relatore Prof.ssa Ciampini, Donatella
Keywords
  • delay mask
  • electron acceleration
  • laser
  • multi-pulse
  • oap
  • parabola
  • plasma
  • pulse train
  • ReMPI
  • resonant
  • wakefield
Graduation session start date
13/03/2023
Availability
Full
Summary
My PhD project is focused on the development of a novel optical system (the delay mask) to
generate a train of ultrashort laser pulses to be used in the ReMPI laser-plasma acceleration
scheme, proposed by the ILIL group in the context of the European infrastructure EuPRAXIA.
It aims to the acceleration of GeV-scale, high-quality electron bunches using existing 100 TWclass
high-power lasers, via the combination of multi-pulse resonant excitation and two-color
injection.
As a first step toward the experimental implementation of ReMPI, my PhD project tackles the
issue of the generation of trains of laser pulses starting by a single, high power laser pulse, to drive
resonant wakefield excitation in a plasma, reviewing existing optical methods and introducing a
recently proposed approach based on a delay mask. Tools developed to model and characterize
experimentally trains of ultrashort pulses generated with a delay mask are described in details in
my thesis. The simulation of the resonant excitation achieved by the pulse train I experimentally
characterized showed a clear experimental signature related to the resonant excitation condition.
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