Steering electrons with extreme ultraviolet light

International team demonstrates quantum coherent control in the extreme ultraviolet

Left: Two interfering stimulated Raman pathways excite the He(2s) bound state through the continuum. The XUV pulses are harmonics Hₓ of order x of a seed laser’s frequency; Right: Excitation yield of the He(2s) as a function of the phase of the harmonic Hₙ₌₁₂. © MBI/Nature Photonics (2026)

Scientists from the Max Born Institute Berlin (Germany), the Université catholique de Louvain (Belgium), the University of Uppsala (Sweden), Universität Kassel(Germany), and Elettra Sincrotone Trieste (Italy) have demonstrated a new way of controlling electrons using extreme ultraviolet (XUV) light, extending so-called "quantum control" concepts into a portion of the electromagnetic spectrum that has long remained beyond reach. The results are published in Nature Photonics.

Read further details in the MBI press release dated 9 October 2026

Publication:

Nature Photonics (2026): Phase control of interfering stimulated Raman pathways in the XUV regime
Ulli Eichmann, Stefanos Carlström, Serguei Patchkovskii, Stefan Eisebitt, Jan-Erik Rubensson, Johan Söderström, Jochen Mikosch, Enrico Allaria, Alexander Brynes, Carlo Callegari, Michele Di Fraia, Michele Manfredda, Nitish Pal, Giovanni Perosa, Oksana Plekan, Alberto Simoncig & Matthieu Génévriez
URL, DOI or PDF

Contact:

Max Born Institute for Nonlinear Optics and Short Pulse Spectroscopy, Leibniz Institute in Forschungsverbund Berlin e.V.
Prof. Dr. Ulrich Eichmann
ulli.eichmann(at)mbi-berlin.de
+49 30 6392 1371
mbi-berlin.de