JOEL WILLIAMS, ASSOCIATE EDITOR [email protected]Researchers led by Tsuneyuki Ozaki and François Légaré at the Institut national de la recherche scientifique (INRS) in Quebec have developed a method that could bring extreme ultraviolet (EUV) femtosecond lasers out of synchrotron facilities and onto the optical table. The technique, based on high-order harmonic generation (HHG), enhances the power of a laser source emitting EUV light pulses by a factor of 10. The underlying mechanism involves the role of dark-autoionizing states through coupling with other pertinent electronic states. 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