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PhD project “Coherent radiation of electrons interacting with intense laser pulses” (226)

ELI Beamlines
Dolní Břežany, Czech Republic
Posting live until
26 Aug 2024

Job Details

The Extreme Light Infrastructure ERIC (ELI ERIC) is the world’s largest and most advanced high-power laser research infrastructure. As an international user facility dedicated to multi-disciplinary science, ELI provides access to world-class high-power, high-repetition-rate laser systems and enables cutting-edge research, as well as breakthrough technological innovations. The ELI ERIC operates as a single multi-site organization with two complementary facilities specialized in different fields of research with extreme light: ELI Beamlines in Dolní Břežany (Czech Republic) and ELI ALPS in Szeged (Hungary).

ELI Beamlines Facility operates four cutting-edge high-power femtosecond laser systems reaching unprecedented intensities. The operational laser systems make unique femtosecond sources of X-rays and accelerated particles available to scientific users for pioneering research in physical, chemical, materials, life and medical sciences as well as physics of dense plasmas, warm dense matter, and laboratory astrophysics. The ELI Beamlines Facility employs over 350 researchers, engineers and other professionals from more than 38 countries.

The progress in laser technology in the last 35 years has provided a tremendous increase of laser power and intensity, which opens the opportunity to explore the light-matter interaction in strong field quantum electrodynamics (SFQED) regime. ELI Beamlines in the Czech Republic is one of the few facilities in the world, which within one year will start producing laser pulses on 10 PW level of power and up to 1023 W/cm2 intensity. Combining such a high-intensity fields with GeV-class electron beams, also available at ELI Beamlines makes this facility ideal to experimentally investigate SFQED processes, such as hard photon emission by charged particles (nonlinear Compton scattering, NCS) and electron-positron pair creation by photons (nonlinear Breit-Wheeler effect, NBW).

In our team we have the following position available: PhD project “Coherent radiation of electrons interacting with intense laser pulses” (226).

In the present project, we will extend SFQED to account for collective effects, when several particles coherently participate in a quantum process. This is a completely new regime, where both collective and QED effects dominate the dynamic of the system. In particular, the aim of the project is to study theoretically and numerically the coherency of radiation emitted by many ultrarelativistic particles interacting with a strong electromagnetic field. The key feature of the analysis is to work within the full quantum regime, where not only recoil effects in the emission are taken into account but also the collective quantum properties of the incoming multi-electron bunch.

The PhD student will be supervised by E. Gelfer (ELI Beamlines) and O. Klimo (ELI Beamlines, Czech Technical University in Prague). The project is funded by the NSF-GACR grant “Coherent radiation of electrons interacting with intense laser pulses” and will be implemented in close collaboration with A. Di Piazza (University of Rochester, Laboratory for Laser Energetics). The duration of the project is 3 years.

We offer:

  • opportunity to work in this unique international scientific institution;
  • competitive and motivating salary;
  • flexible working hours;
  • good working environment;
  • career growth, professional education;
  • meal allowance, pension contribution;
  • 5 weeks of holidays and 6 days of personal leave;
  • support of leisure time activities.

For more information, please contact Evgeny Gelfer Applications, containing CV, cover letter, contacts of references, and any other material the candidate considers relevant, should be sent to Mrs. Jana Ženíšková, HR Senior Specialist (, +420 601 560 322).

Information on the processing of personal data can be found on We are an equal opportunity employer.



ELI Beamlines profile imageELI Beamlines is part of the European ELI laser centre, the world’s first international laser facility. ELI Beamlines is open to an international and interdisciplinary user community from academia and industry. Mandated by the international scientific laser community and implemented in the Czech Republic, Hungary and Romania, ELI drives international laser research and laser-based applications to new frontiers, and fulfils important missions for regional socio-economic development.

About us
The main mission of ELI Beamlines is to provide a user-oriented infrastructure for performing revolutionary scientific experiments across many different disciplines. It combines advanced synchronized ultra-intense short-pulse lasers with secondary sources of particles and X-rays.

The ELI Beamlines facility provides research opportunities at a number of world-class secondary sources, each one driven by ultra-intense lasers. These secondary sources, partially based on entirely new concepts, produce pulses of radiation and particles of the highest intensity and beam quality, including electromagnetic radiation over a broad spectral range and charged particles such as electrons, protons and ions. These will enable a wealth of novel applications.

The ERIC is a specific legal form designed to facilitate the establishment and operation of research infrastructures of European interest. ERICs are participated by States and international organizations as members. As a main statutory mission, ELI ERIC is responsible for making the ELI facilities available to the scientific community as a single international organization, with unified governance and management.

The Czech Republic hosts the ELI ERIC statutory seat in Dolní Brezany, in the South of Prague, at the ELI Beamlines facility. A second facility, ELI-ALPS, is hosted by Hungary in Szeged. The Czech Republic and Hungary are joined by Italy and Lithuania as founding members, while Germany and Bulgaria are founding observers. A third ELI facility is under construction in Romania in the field of nuclear photonics and is expected to complement the current ELI ERIC facilities in the future. More information can be found on the ELI ERIC websites.

Why work for us
The ELI Beamlines brings together people from all over the world. If you want to participate in the largest laser research project in the world, apply through the offer of employment at We are interested in people of various professions and specializations. We can offer interesting and challenging work, dedicated training, plus the chance to work with smart people in a pleasant working environment.

The future is in laser technologies. Are you interested? Join us!

Czech Republic

Number of employees

Positions recently recruited for
Scientists, engineers, PhD students and technicians

Desired degree disciplines/class
From apprenticeship to PhD in a wide variety of domains

Eligible to work in the EU

How to apply
Apply online at

Closing date
All year round

Tel +420 601560322

Company info
+420 601560322
Za Radnicí 835
Dolní Břežany

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