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Ultrafast measurements in accelerator-based sources

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Français - Anglais

Date Limite Candidature : jeudi 2 juin 2022

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General information

Reference : UMR8523-SERBIE-001
Date of publication : Thursday, May 12, 2022
Scientific Responsible name : Serge Bielawski
Type of Contract : PhD Student contract / Thesis offer
Contract Period : 36 months
Start date of the thesis : 1 October 2022
Proportion of work : Full time
Remuneration : 2 135,00 € gross monthly

Description of the thesis topic

The PhD will focus on the development of novel ultrafast measurement techniques using femtosecond lasers, and that are destined to accelerator physics. The main objective is to realize systems that are able to record the shapes of pico or femtosecond relativistic electron bunch shapes, as well as the terahertz light that is emitted by accelerator-based sources. The project is the fruit of a collaboration between DESY (German national research center on accelerators science, www.desy.de) and the PhLAM CNRS laboratory at Lille University. The project will include the development of measurements systems based on novel concepts that include (but are not limited to) single-shot electro-optic sampling, photonic time-stretch, as well as novel analysis strategies based on the concepts of phase diversity. The subject includes experimental photonics, for the development and tests of novel measurement strategies, experiments at accelerator facilities (including in particular at FLASH and European XFEL), as well as numerical and theoretical work. The candidate should be ideally familiar with photonics, and should demonstrate an ability to python programming. The Thesis will be delivered by Lille University. Parts of the thesis research work will be performed at PhLAM (Lille, France) and parts at DESY (Hamburg, Germany).

Work Context

The project is the fruit of a collaboration between the PhLAM laboratory (Lille, France) and the DESY accelerator research center (Hamburg, Germany). The PhLAM team is expert in ultrafast photonics (in the optical and THz domains). PhLAM is also expert in accelerator physics, with previous collaboration including UVSOR (Japan), SOLEIL (France), the Karlsruhe Institute of Technology, and DESY, which will be the main partner in the framework of the Thesis. DESY is one of the most important accelerator centers in the world and hosts two major free-electron lasers: FLASH and European XFEL, which will be key equipements for the PhD Thesis.

Constraints and risks

The PhD candidate will have to travel to DESY (Hamburg), for periods that may reach several weeks.

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