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12 May 2000Influence of nematic liquid crystal with dye and cell construction parameters on dynamic holographic grating formation
We have described the relation between LC parameters and induced diffraction gratings recorded by light intensity pattern in dye-doped nematic liquid crystals sandwiched between two coating glass plates covered with ITO conductive and polyimide orientation layers. In our investigations we used the LC cells containing planary oriented nematic mixtures (low-angle rubbing, tilt 1.5 - 2%) doped with the antraquinone dyes (0.1 - 1% w/w). Nematic liquid crystal mixtures with different electrooptical threshold, optical anisotropy, viscosity and conductivity have been investigated. The influence of resistivity, optical anisotropy of LC mixtures and polyimide layers on diffraction efficiency and other parameters have been discussed.
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Janusz Parka, Andrzej Miniewicz, A. Januszko, Yuri A. Reznikov, Roman S. Dabrowski, Zofia Stolarz, "Influence of nematic liquid crystal with dye and cell construction parameters on dynamic holographic grating formation," Proc. SPIE 4147, Liquid Crystals: Chemistry, Physics, and Applications, (12 May 2000); https://doi.org/10.1117/12.385707