Pre-Announcement: 7th ELI User Call to Open on 23rd September

The Extreme Light Infrastructure (ELI) will open its 7th User Call on 23 September 2025, with a submission deadline of 28 October 2025. Researchers worldwide are invited to submit proposals to access instruments at the ELI ALPS, ELI Beamlines, and ELI Nuclear Physics Facilities. Proposals will be evaluated by an international peer-review panel based on scientific excellence.

 The High Field Petawatt (HF PW) laser will be available to users for the first time. The HF PW delivers ultrashort, high-power pulses with excellent stability, combining high average and peak power. It enables experiments across 3 dedicated beamlines, supporting research from attosecond pulse generation to electron acceleration and strong-field physics.

• HHG-MAC is a multipurpose station for Atomic, Molecular and Optical (AMO) sciences and Coherent Diffractive Imaging (CDI), powered by a high-harmonic generation (HHG) source of coherent vacuum-and extreme ultraviolet VUV/XUV pulses. The HHG is driven by a unique combination of high repetition rate (1 kHz) laser systems and is also available for research into source development.

A preliminary overview of the equipment available for this Call is accessible on the ELI User Portal and may be updated. The information on the User Portal is currently being updated, based on the new offer.

• Register in the ELI User Registry to access the User Office System (UOS) for proposal submission. Note that a Multi-Factor Authentication (MFA) has been introduced for enhanced security.
• The UOS provides step-by-step support for proposal preparation, training, and the full submission process.
• Engage early with beamline scientists to ensure feasibility and strengthen your proposal.

For questions, contact the ELI User Office at user-office@eli-laser.eu.

Evolving ELI User Programme

The ELI User Programme has completed 6 Calls, steadily expanding the instrument portfolio and scientific reach, since its launch 3 years ago:

• 563 proposals submitted to date
• 1400+ individual Users representing 38 countries

These figures underline the international momentum behind ELI and its role as a global user facility for cutting-edge laser science. For more details, see the latest ELI Annual Report.

Updates for Users

Stay up-to-date by visiting the ELI User Portal or sign up for the mailing list to receive regular news about the ELI User Calls as well as key information about ELI.