Single-and double-beam optical formation of relief diffraction microstructures in carbazole-containing azopolymer films

Single- and double-beam formation of diffraction microstructures in carbazole-containing azopolymer films is presented. The possibility of recording single microroughnesses by a focused vortex laser beam with linear and circular polarization is shown. The analysis of the shape of the relief of the microstructures on the state of polarization is performed. A double-beam method of creation of diffraction lattices is presented, in which a spatial light modulator is used for the formation of the vortex phase. The evaluation of the diffraction efficiency of the formed periodic optical structures on the duration of the exposure is performed.