Johannes Schötz presents the first measurements of optical electro-magnetic near-fields around
nanostructures with subcycle-resolution. The ability to measure and understand light-matter
interactions on the nanoscale is an important component for the development of
light-wave-electronics the control and steering of electron dynamics with the frequency of
light which promises a speed-up by several orders of magnitude compared to conventional
electronics. The experiments presented here on metallic nanotips widely used in experiments
and applications do not only demonstrate the feasibility of attosecond streaking as a unique
tool for fundamental studies of ultrafast nanophotonics but also represent a first important
step towards this goal.