Properties of Bessel beams in the structure containing a layer of metamaterial

The properties of Bessel beams propagation and transformation in optical metamaterials are studied. The problem is solved by reflection and refraction of vectoral BLB containing embedded vortices on the boundary of a usual medium and metamaterial. The reflection and refraction coefficients of arbitrary Bessel beam are represented as superposition of linear combinations of reflection and refraction ones of TM- and TE- polarized Bessel beams. The possibility is established and conditions are determined for unidirectional and opposite directional propagation of Bessel light beams (BLBs) phase and the longitudinal component of its energy flux in metamaterials.