Optical Vortices Generation by Azopolymeric Relief Gratings

The energy and spectral conditions for single-stage holographic recording of a diffraction optical element based on the carbazole-containing azo polymer, that forms singular light beams (optical vortices), have been established. With atomic-force microscopy (AFM), surface morphology recorded relief holograms was studying, their efficiency has estimated. topology generated phase singularities studied stability range an vortex having topological charge l = 2 found. possibility using developed diffractive in scheme tweezers manipulating micro-objects is demonstrated.