The effect of surface deformations on laser absorption
and transport in overdense plasma targets is investigated
with 2D Vlasov simulations. Fractional absorption increases
strongly with the deformation depth and scales weakly with
density or intensity. Fast electrons generated in the skin
layer have high tangential velocity directed toward the
deformation center. In the case of a single, smooth
deformation, they may be collimated by magnetic fields
into a single jet which penetrates deeply into the plasma.
Small-scale surface corrugations are able to destroy the
collimation of a single jet leading to multiple jets or
diffuse electron sprays.