Seminario impartido por Javier Hernández Rueda, de la Universidad Complutense de Madrid
Today, phenomena behind light-driven fast and ultrafast mechanisms at the micro- and nanoscale inspire a number of groundbreaking applications in nanophotonics, laser-materials processing and extreme ultraviolet (EUV) nanolithography. To the naked eye, femtosecond and nanosecond laser-matter interactions may seem instantaneous and lead to a time-averaged observation that compiles a chain of physical mechanisms that expand over the time-scales. In brief, energy change hands, from photons to electrons (fs-ps), which for the specific case of fs-laser-matter interactions quickly thermalize and transfer their energy to the crystalline network. Said processes, and the final aftermath, can be remotely modulated by exploiting the choice of the light properties and/or materials properties, which work as “control knobs”. During the symposium, I will present the three scenarios listed below where the observation of laser-induced fast and ultrafast dynamic mechanisms can be used to both (a) understand the involved multi-physics and (b) to be exploited for applications. Ns-laser-induced dynamics of Sn micro droplets in the EUV nanolithography industry (ASML). Chain of mechanisms during fs-laser-water interactions at the nanoscale. Use of trapping techniques and multiphoton microscopy to investigate reversible ultrafast dynamic processes in levitating nanoparticles in vacuum and 2D materials.
Ponente del seminario: Javier Hernández-Rueda
Fecha del seminario: 22/01/2025 12:00
Lugar del seminario: Salón de Actos del IQF
