Access Facilities - FERMI, Trieste, Italy

Transnational Access to Elettra-Sincrotrone Trieste S.C.p.A, Trieste, Italy

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Elettra Sincrotrone Trieste is a multidisciplinary international laboratory of excellence, specialized in generating high quality synchrotron and free-electron laser light and using it in materials science. The main assets of the research centre are two advanced light sources, the electron storage ring Elettra and the free-electron laser (FEL) FERMI, continuously (H24) operated, supplying light of the selected "colour" and quality to more than 30 experimental stations.

Excellence: Unique among the only five FEL sources currently operating in the ultraviolet and soft x-ray range worldwide, FERMI has been developed to provide fully coherent ultra-short (10-100 femtosecond) pulses with a peak brightness ten billion times higher than that made available by third-generation light sources. FERMI is opening unique opportunities for exploring the structure and transient states of condensed matter, soft matter and low-density matter using a variety of diffraction, scattering and spectroscopy techniques. Presently, five beamlines are operational at FERMI: one devoted to elastic and inelastic scattering (http://www.elettra.trieste.it/lightsources/fermi/fermi-beamlines/eis/eis-home.html), one to diffraction and projection imaging (http://www.elettra.trieste.it/lightsources/fermi/fermi-beamlines/diproi/diproihome.html), one to low-density matter studies (http://www.elettra.trieste.it/lightsources/fermi/fermibeamlines/ldm/ldmhome-page.html), one to the study of transient magnetic states of matter (https://www.elettra.trieste.it/lightsources/fermi/fermi-beamlines/magnedyn/magnedyn.html) and one to THz spectroscopy (http://www.elettra.eu/lightsources/fermi/fermi-beamlines/terafermi/terafermi.html).

Publications:

- Highly coherent and stable pulses from the FERMI seeded free-electron laser in the extreme ultraviolet, E. Allaria et al., Nature Photonics 6, 699 (2012)
- Two-stage seeded soft-X-ray free-electron laser, E. Allaria et al., Nature Photonics 7, 913 (2013)
- Single-shot spectro-temporal characterization of XUV pulses from a seeded free-electron laser, G. De Ninno et al., Nature communications 6, 8075 (2015)
- Extreme-ultraviolet vortices from a free-electron laser, P.R Ribič et al., Phys. Rev. X 7, 031036 (2017)
- Soft X-ray second harmonic generation as an interfacial probe, R.K. Lam et al., Phys. Rev. Lett. 120, 023901 (2018)