The Paul Scherrer Institute PSI is the largest research institute for natural and engineering sciences within Switzerland. We perform cutting-edge research in the fields of future technologies, energy and climate, health innovation and fundamentals of nature. By performing fundamental and applied research, we work on sustainable solutions for major challenges facing society, science and economy. PSI is committed to the training of future generations. Therefore, about one quarter of our staff are post-docs, post-graduates or apprentices. Altogether, PSI employs 2300 people. 

For the Beamline Optics Group, PSI Center of Photon Science, we are looking for a

Postdoctoral Fellow

Apply online now

Your tasks

  • Optical design for blazed reflection X-ray gratings 
  • Supporting an external start-up company with the process development for fabrication of such gratings in our cleanroom 
  • Characterization of the optical parameters in our metrology laboratory 
  • Testing the performance of prototype gratings at X-ray beamlines 
  • Publication of the results in peer-reviewed scientific journals

Your profile

  • PhD in physics or related with solid knowledge of fundamental physics of light and knowledge of optics. Experience in X-ray optics is a plus
  • Willingness to perform work in a cleanroom environment, with a strong hands-on mentality 
  • Principal knowledge of scientific software for programming and/or data analysis. Advanced programming skills are a plus (Python, Matlab etc)
  • Experience with synchrotron or free-electron laser experiments and X-rays is considered a valuable addition
  • Proof that you have a record in scientific writing by a suitable publication record (two or more first-author publications) 
  • Good knowledge of written and spoken English 
  • As a significant part of the work is going to be located in our cleanroom and metrology laboratories, a sufficient fitness and the ability to work in this environment is a pre-condition (up to two hours continuously within cleanroom cloths and gloves)

We offer

Our institution is based on an interdisciplinary, innovative and dynamic collaboration. You will profit from a systematic training on the job, in addition to personal development possibilities and our pronounced vocational training culture. If you wish to optimally combine work and family life or other personal interests, we are able to support you with our modern employment conditions and the on-site infrastructure. 

Your employment contract is limited to two years. In case of success, our implementation partner (the start-up company) may have an interest to extend the project.

For further information, please contact Dr. Benedikt Rösner, phone +41 56 310 2454.

Please submit your application online by 26 June 2025 (including list of publications and addresses of referees) for the position as a Postdoctoral Fellow (index no. 6613-00).

Paul Scherrer Institute, Human Resources Management, Mariusz Prus 5232, Villigen PSI, Switzerland