Postdoctoral Scientist / Researcher (all genders) in the field of ultra-short pulse laser physics...

Helmholtz Association of German Research Centres; Deutschland; Vor Ort; EUR 50.000 - 65.000; Vollzeit

Zusammenfassung

A prominent research institution in Germany is seeking a Postdoctoral Scientist in ultra-short pulse laser physics. This role involves developing a frequency comb laser and collaborating on nuclear spectroscopy experiments. The ideal candidate will have a PhD in a relevant field, strong skills in laser stabilization, and experience in programming. Competitive salary and benefits based on public service agreements are offered, with a fixed-term 3-year contract.

Leistungen

Fixed-term 3-year contract

Salary based on public service agreements

Professional development opportunities

Qualifikationen

• Completed PhD degree in physics, electrical engineering or a similar field.
• Excellent experience and expertise in laser stabilization and frequency combs.
• Experience in fiber lasers and nonlinear optics.
• Knowledge of electronics, Python and FPGA (VHDL) programming is ideal.
• Very good written and spoken English skills.
• Excellent teamworking skills.

Aufgaben

• Develop a frequency comb laser in the vacuum-ultraviolet (VUV) spectral range.
• Co-supervise a PhD student working on the HiTHOR project.
• Adapt laser systems for spectroscopy experiments.

Kenntnisse

Laser stabilization

Frequency combs

Phase-locked loops

Fiber lasers

Nonlinear optics

Electronics knowledge

Python programming

FPGA (VHDL) programming

Teamworking skills

English language skills

Ausbildung

PhD degree in physics, electrical engineering or related field

Jobbeschreibung

Area of research

Scientific / postdoctoral posts

Starting date

06.11.2025

Job description

The Helmholtz Institute Jena (HI Jena) is a joint institution of the Friedrich-Schiller-Universität Jena and the GSI Helmholtz Centre for Heavy Ion Research GmbH in Darmstadt. The institute is mainly focused on applied and fundamental research at the borderline of high‑power lasers and particle accelerators. It maintains close collaborations with the Helmholtz Centers DESY in Hamburg, and HZDR in Dresden.

For a doctoral position in the research group “Laser Science and Technology” located at DESY, we are looking for a

Postdoctoral Scientist / Researcher (all genders) in the field of ultra‑short pulse laser physics / optical frequency combs

Posting ID: 25.132-4210

Nuclear spectroscopy of 229Thorium is a highly interesting field of research at the intersection between nuclear and atomic physics, which deals with the properties of an exceptionally low excited state in the atomic nucleus of 229Thorium. This state has an estimated excitation energy of only around 8eV. Only recently has it been possible to excite this state directly with an optical laser. As part of the HiTHOR project based at the Helmholtz Institute Jena and funded by the European Research Council ERC, this nuclear transition is now to be investigated in detail, which promises unique new insights into the quantum physics of atomic nuclei as well as new approaches for the construction of a high‑precision ‘nuclear clock’.

Within this project, the further development of a frequency comb laser in the vacuum‑ultraviolet (VUV) spectral range will be pursued. In contrast to existing VUV comb systems, a novel, much more efficient approach will be targeted. This work will also include the development of the laser’s feedback control systems, as well as its adaptation to planned 229Thorium ion spectroscopy experiments at GSI. The successful candidate is expected to co‑supervise a PhD student working in this project.

We are looking for candidates who have:

• A completed PhD degree in physics, electrical engineering or similar field,
• Excellent experience and expertise in the field of laser stabilization, frequency combs, phase‑locked loops, proven by relevant publication track record,
• Experience in the field of fiber lasers and nonlinear optics,
• Ideally, knowledge of electronics, Python and FPGA (VHDL) programming,
• Interest in working with experts on a cross‑institute collaboration project,
• Very good written and spoken English language skills,
• And excellent teamworking skills.

What we offer:

A fixed‑term 3-year contract embedded in Germany’s largest research foundation, with the salary and benefits based on the Collective Agreement for the German Public Service (TVöD‑Bund) effective at GSI. The position will be established at the Helmholtz Center DESY in Hamburg.

GSI promotes the professional development of women and expressly welcomes applications from women. Handicapped persons will be preferentially considered when equally qualified.

Information about the Helmholtz Institute Jena, GSI and FAIR is available at www.hi-jena.de, www.gsi.de and www.fair-center.eu.

If you find this position interesting, please submit your full application documents, including your desired salary, your earliest possible starting date and the posting ID 25.132-4210 by 05.12.2025 at the latest through our online portal.

GSI Helmholtzzentrum für Schwerionenforschung GmbH
Abteilung Personal
Planckstrasse 1
64291 Darmstadt