Scientist / Researcher (m/f/d) in the field of Ultrafast Pulse Compression, HIJ Ref. No.: 23.28-4208

GSI Helmholtzzentrum for Schwerionenforschung
June 12, 2023
Offerd Salary:Negotiation
Working address:N/A
Contract Type:fixed-term 3-year co
Working Time:Part time
Working type:N/A
Ref info:N/A

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.

For a doctoral position in the High-Power Laser Development department of the institute, we are looking for a

Scientist / Researcher (m/f/d) in the field of Ultrafast Pulse Compression

Posting ID: 23.28-4208

Part-time 65 %

The applications of intense ultrafast lasers are manifold. They include compact electron and ion accelerators for radiation therapy as well as XUV and X-ray generation for imaging or lithography. However, the advancement of these outstanding laser applications is hampered by the poor wall-plug efficiency of the extremely bright light sources. On the one hand, this makes cutting-edge laser technology very expensive, and thus typically only accessible at large- scale facilities. On the other hand, optical efficiency will be the key to high repetition rate ultra-intense lasers, that enable optimization of the light-driven extremely nonlinear processes by feedback loops. A very promising method to push the frontiers of laser science is nonlinear pulse compression. Shortening light pulse durations is an extremely efficient means to enhance laser peak power, which has lately been demonstrated at unprecedent high average powers (cf. https: // In one of our recent studies, we have achieved more than 100-fold pulse duration shortening and 30-fold peak power enhancement to multi-GW levels (cf. https: // To push the limits of nonlinear pulse compression toward even higher powers and larger compression factors, we are looking for a highly motivated researcher joining our team.

Your work will focus on:

  • taking advantage of the unique research infrastructure at DESY and work with high-rate μJ- to mJ- near- and mid-infrared lasers as well as low- rate lasers with up to J-level energies,
  • applying different spectral broadening technologies, using cascaded χ(2)-nonlinearities, multi-pass cells and potentially photonic crystal fibers,
  • interacting with several research groups and delving into applications of ultra-intense lasers.
  • We are looking for a candidate with a Master's (or equivalent) degree who:

  • enjoys working at the transition zone between physics, optics and high- tech engineering,
  • has laser lab experience and a basic understanding of perturbative nonlinear optics,
  • likes collaborative work and can utilize the great swarm intelligence of the research centers.
  • The research project will be conducted at the DESY campus in Hamburg, Germany.

    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 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, FAIR and GSI is available at www., www. and www.

    For any questions please contact Dr. Marcus Seidel (M.Seidel(at)hi-, Phone: +49 40 8998-6034.

    Please send your application, containing a cover letter, a CV, and any supporting documents, stating the identification number 23.28-4208 , until 21.05.2023 to bewerbung(at) or to:

    GSI Helmholtzzentrum für Schwerionenforschung GmbH Abteilung Personal Planckstrasse 1 64291 Darmstadt

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