Speaker
Description
Ultrafast electron microscopy provides the possibility to conduct time-resolved experiment in three independent dimensions: real space, reciprocal space and energy domain. Being promising for condensed matter and material research it also serves as a platform for electron-light interaction. There are two mechanisms which facilitate the strong interaction regime: interaction with near-fields and interaction via inverse transition radiation. We utilise these effects to demonstrate:
1) Momentum exchange between electron and photon;
2) Generation of electron vortex facilitated by orbital angular momentum conservation upon absorption of circularly polarized photons
3) Coherence interaction involving multiple optical fields, used for time-holography of optical fields.
