Vacancies within the QUASAR Group

PhD Projects

In order to apply for one of our projects, please submit your application via the following link ( Please indicate the project you are particularly interested in; general applications will also be considered.

Dielectric laser acceleration of relativistic beams

Supervisors: Prof C.P. Welsch, Dr Steve Jamison (STFC), Dr Rosa Letizia (Lancaster)

Laser-driven acceleration in dielectric structures is capable of GV/m acceleration gradients and control of sub-femtosecond beams. The field is undergoing a resurgent interest internationally, with large programmes such as the ‘accelerator on a chip’ programme and ERC programmes in THz-driven acceleration in optimised Dielectric Laser Acceleration (DLA) structures completing in 2018, having delivered a strong track record of publications.

In this project you will extend DLA modelling and optimisation to high scientific impact experimental demonstrations, working in collaboration between Liverpool, PSI and KIT, Lancaster and ASTeC. The project will develop structures for experimental demonstration of acceleration and deflection at both the Paul Scherer Institute and CLARA at Daresbury. You will undertake modelling of structures identified through previous work, with scaling to longer wavelength narrow-band sources that offer increased acceptance for acceleration. In anticipation of the experimental programme, the electron beam modelling will incorporate known (experimentally determined) beam parameters from Swiss-FEL and CLARA. In collaboration with PSI you will participate in the design and manufacture of structures optimised for experiments at Swiss-FEL and CLARA. You will also have a central role in delivering experiments involving PSI collaborators and CI partners.

For the CLARA experiments you will have responsibility for the experimental system integration of manufactured structures, laser sources, and the electron-beam optics design and optimisation.

Funding and eligibility: The project is fully funded by the Science and Technology Facilities Council for 3.5 years; UK and other EU citizens are eligible to apply. A full package of training and support will be provided by the Cockcroft Institute, and you will take part in a vibrant accelerator research and education community of over 150 people. An IELTS score of at least 6.5 is required.

Contact Prof Carsten P Welsch ( for further information and informal discussions.

Application deadline: 31st August 2018. 

Fellowship opportunities

‌We invite expressions of interest for a number of prestigious Fellowships and grants, including ERC Starting and Consolidator Grants, Marie Curie Fellowships, and STFC Rutherford Fellowships all year around.

These funding schemes offer outstanding supporting and developing opportunities for time frames between 2-5 years and are an ideal platform for those who have already demonstrated their potential as outstanding researchers. We can provide access to world-class research infrastructure at the Cockcroft Institute/University of Liverpool and help you develop your proposal into a competitive bid. The stimulating environment within the QUASAR Group will allow you to make your research ideas become reality.