  Recent experiments point to a variety of intermetallic systems which exhibit
exotic quadrupolar orders driven by the Kondo coupling between conduction
electrons and localized quadrupolar degrees of freedom. Using a Luttinger k.p
Hamiltonian for the conduction electrons, we study the impact of such
quadrupolar order on their energies and wave functions. We discover that such
quadrupolar orders can induce a nontrivial Berry curvature for the conduction
electron bands, leading to a nonvanishing optical gyrotropic effect. We
estimate the magnitude of the gyrotropic response in a candidate quadrupolar
material, PrPb3, and discuss the resulting Faraday rotation in thin films.
