Geodesic
Two-dimensional polarization patterns for holographic recording
Proceedings of the Yerevan State University. Physical and mathematical sciences, no. 2 (2013), pp. 58-63

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Two-dimensional $(2\mathrm{D})$ 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 $\pi/2$ between consecutive beams contains the amplitude modulation of the optical field in the superposition region and, thus, pure $2\mathrm{D}$ polarization patterns are created. The recording of this interference field in a polarization sensitive material creates reconfigurable $2\mathrm{D}$ periodic microstructure with peculiar diffraction properties.
Keywords: polarization grating, nematic liquid crystal. 
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M. R. Hakobyan; M. R. Hakobyan. Two-dimensional polarization patterns for holographic recording. Proceedings of the Yerevan State University. Physical and mathematical sciences, no. 2 (2013), pp. 58-63. http://geodesic.mathdoc.fr/item/UZERU_2013_2_a8/