18 June 2004 Retrieval of computer-generated holograms projected onto liquid crystal-photoconducting polymer system
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Abstract
Simple liquid crystal panel equipped with a polymeric photoconducting layer can be used for displaying dynamic holographic images. It is sufficient to compute the hologram of the object and reconstruct the wavefield optically. This can be done by projection of the binary hologram onto liquid crystal panel with the help of standard video-projector. Illumination of the photoconducting polymeric layer by a white light interferogram leads to tiny molecular rearrangements within the bulk of the liquid crystal layer which form a refractive index grating. They occur as a result of spatially modulated electric space charge field produced in a polymer. Short holographic films displayed at video-rates are achievable with the system based on PVK:TNF polymer and planar nematic liquid crystal mixture. The underlying electrical and optical processes as well as characteristics, performances and limitations of the system are discussed.
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Andrzej Miniewicz, Andrzej Miniewicz, Jaroslaw Mysliwiec, Jaroslaw Mysliwiec, Lukasz Gryga, Lukasz Gryga, Francois Kajzar, Francois Kajzar, } "Retrieval of computer-generated holograms projected onto liquid crystal-photoconducting polymer system", Proc. SPIE 5351, Organic Photonic Materials and Devices VI, (18 June 2004); doi: 10.1117/12.533165; https://doi.org/10.1117/12.533165
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