Weigert hologram

Abstract

The Jones matrix is obtained for a film with a photoinduced anisotopy. The anisotropy of the film is considered to be caused by photoinduced anisotropic grains. On the basis of the Jones matrix we study Weigert's hologram of linearly polarized plane waves.

Gelatin as Photosensitive Material

“…This is called polarization holography. The group of Prof. Ebralidze (Georgia) [19][20][21][22][23] developed a technique where they used dyed gelatin to record polarizing holograms. Azo-dye-colored gelatin films (methyl-orange, methyl-red, and other dyes) were prepared on glass plates.…”

“…They developed theory and experiments. In references [19][20][21][22][23] are mentioned some articles of the group but they published more information.…”

Rotating light with light: Generation of helical modes of light by spin-to-orbital angular momentum conversion in inhomogeneous liquid crystals

“…41 Finally, I note here (as already anticipated) that the PBOE principle is strictly related to the so-called polarization holography (PH), in which the holographic material records the information contained in the optical polarization. 34,42 Typically, in PH one needs a light-sensitive polymer that can align its molecular chains parallel or perpendicular to the polarization direction. 43 In order to memorize a given wavefront in a PH hologram, one must superimpose the wave carrying that wavefront with a plane-wave reference, taking care that both waves are circularly polarized, with opposite handedness.…”

Anisotropic photonic gratings formed in photocross-linkable polymer liquid crystals

“…Diffractive optical devices are of great importance for realizing numerical optical functions such as optical memory devices, 1 integrated optical devices, 2 and thin film optical filters. [5][6][7][8][9][10][11][12][13][14][15][16][17][18][19] Due to their structural flexibility both at the molecular and bulk levels, organic materials are becoming a very important class of holographic recording materials that can be used for generating necessary laser-induced refractive index changes in optoelectronics. The resulting gratings can control light propagation directions and can be used in optoelectronic equipments.…”