Chiral anomaly induced Veselago lensing in Weyl semimetals

The description of electron scattering between two media is similar to the refraction of light, where light-rays follow the path of least accumulated optical index. In the late 60's Veselago showed that this optical index can be negative, opening new ways for imaging, even below the diffraction limit. A similar situation also occurs in the case of Dirac electrons, in Klein tunneling. In this poster we show that on the contrary to 2D materials, such as graphene, Veselago lensing can be observed separately for cones of opposite chirality in Weyl semimetals with the help of the chiral anomaly. We illustrate this in the case of two physical phenomena : Friedel oscillations and non-local conductivity. This will allow us to discuss how Veselago lensing occurs in solid-state devices and its extensions to other types of materials.