Scientists at the X-ray free-electron laser SwissFEL have realized a long-pursued experimental goal in physics: to show how ...
Artistic impression of X-ray four-wave mixing – a technique that reveals how electrons interact with each other or with their ...
Four-wave mixing (FWM) is a nonlinear optical phenomenon occurring in fibre-based Wavelength Division Multiplexing (WDM) systems, where the interaction among multiple channels produces additional ...