Paper 11999-2
Paper 11999-2
Photoinduced transient symmetry breaking in plasmonic structures for ultrafast nanophotonics
Abstract
The spatio-temporal dynamics of hot electrons generated in plasmonic nanostructures via resonant excitation with fs-laser pulses is tailored to induce a transient symmetry breaking of the optical properties at the nanoscale. This effect can be exploited to achieve all-optical control of light with unprecedented speed, including ultrafast transient dichroism from plasmonic metasurfaces with nanocross metaatoms, and ultrafast reconfiguration of diffraction orders in plasmonic metagratings.
Presenter
Politecnico di Milano (Italy)
Giuseppe Della Valle is a professor at the Physics Department of the Politecnico di Milano, where he teaches courses of General Physics, Nano-Optics, and Plasmonics. His research activity is devoted to both theoretical and experimental research in Physics and Optics, with particular interest to the development of novel photonic structures at the micro- and nano-scale for the generation and coherent control of light.