Attosecond science studies the motion of electrons on the atomic and molecular scales, which typically occurs on the timescale of attoseconds (1 as = 10^-18 s). This motion is at the basis of all fundamental processes occurring in Chemistry, Materials Science, and Biology, and its understanding enables innovation in all these scientific fields. The access to the electronic motion on the timescale of attoseconds is based on the analysis of extreme ultra-violet (EUV) harmonic radiation generated when a molecule is hit by an intense femtosecond (1 fs = 10^-15 s) laser pulse. However, despite its huge potential, limitations in the commercially available EUV spectrometers currently hinder the full exploitation of this approach and restrict it to a few very specialized users who are able to build their own instruments. By exploiting the innovative technical methods developed during UDynI ERC, we realized a compact, versatile, and user-friendly EUV spectrometer, which overcomes these limitations. This technology is a step forward for granting access to attosecond science to a wider range of stakeholders in fields with high impact on the society, such as Health (e.g. drug discovery), Environment (e.g. understanding atmospheric photoinduced pollution, finding more effective chemical and catalytic processes) and
Technology (e.g. study of high-temperature superconductors and ultrafast switching in magnetic materials).
