Using ultrashort laser pulses, scientists have demonstrated the emission of extreme ultraviolet radiation from thin dielectric films and have investigated the underlying mechanisms. The experiments pave the way towards new solid-based photonic devices. Because the motion of the electrons driven by the laser pulse probes the properties of the solid, measurements of the emitted radiation lead to a deeper understanding of the structure and the inner workings of solids.

Source: Solid-state photonics goes extreme ultraviolet