  We propose a novel experimental method to produce and detect weakly
interacting light vector bosons using coherent processes in refractive media. A
light vector boson would be produced by a laser photon scattered at a plane
interface between two media of different dielectric properties and will be
converted back to photon in the similar scattering process. The effect depends
strongly on the indices of refraction of the two media. If incident and
recovered photons were traveling through extremely high vacuums, limits on the
existence of several light vector bosons could be substantially improved.
