  The helicity or chirality of scattered light is strongly linked to the dual
symmetry of the scatterer. The latter depends on chiral materials or on
scatterers which are not superimposable with their mirror image. This
inherently yields asymmetric structures of various shapes with many degrees of
freedom. In order to explore these high dimensional parameter spaces, numerical
simulations and especially optimization strategies are a valueable tool. Here,
we optimize the emission of chiral line sources in two-dimensional dimer setups
using Bayesian optimization. We deduce relevant objective functions from recent
theoretical findings for chiral electromagnetic fields and employ rigorous
simulations of Maxwell's equations.
