The ability to create surface structures with precisely controlled chirality
remains a major challenge in laser-matter interaction experiments. In this
work, we theoretically study the interaction of vortex laser beams,
characterized by spiral polarization patterns and twisted wavefronts, with
rough metallic surfaces in order to create surface patterns with chirality.
Using numerical simulations based on the finite-difference time-domain method,
we investigate how spin and orbital angular momenta influence the inhomogeneous
energy absorption at the surface and generate twisted optical forces that can
drive topographic reorganization. We show how different structured light fields
can create intricate patterns with chiral features on a material surface. We
emphasize the crucial role of polarization and spatial inhomogeneity of the
light field in the generation of asymmetric torque forces that directly affect
the surface dynamics. Our electromagnetic simulations show how vortex beams can
be used to create chiral surface structures, expanding our knowledge of
laser-generated periodic surface structures and opening up new possibilities
for chiral surface engineering.