TWO-DIMENSIONAL POLARIZATION PATTERNS FOR HOLOGRAPHIC RECORDING

Abstract

Two-dimensional (2D) polarization pattern is achieved by the interference of two pairs of beams with perpendicular planes of incidence and orthogonal circular polarizations. Imposing a phase shift of π/2 between consecutive beams contains the amplitude modulation of the optical field in the superposition region and, thus, pure 2D polarization patterns are created. The recording of this interference field in a polarization sensitive material creates reconfigurable 2D periodic microstructure with peculiar diffraction properties.