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The influence of the quartz-substrate surface on the orientational arrangement in the NLC wall-adjacent layers in the thickness region that corresponds to the layer with excess (in comparison with the bulk) ordering--l < 0.1 (mu) was studied. The measurements of electronic spectra of the wedge-like 5CB samples with P- and H-orientation in the frequency region 30000 divided by 48000 cm-1 were carried out. The experimental spectra were decomposed to elementary bands and the thickness dependence of their parameters was discussed.
A. Yu. Popovskij,B. A. Altoiz,Yu. M. Popovskij, andV. I. Mikhailenko
"Investigation of the surface substrate influence on the peculiarities of the absorption spectra of 5CB wall-adjacent layers", Proc. SPIE 2731, International Liquid Crystal Workshop on Surface Phenomena, (19 January 1996); https://doi.org/10.1117/12.230648
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A. Yu. Popovskij, B. A. Altoiz, Yu. M. Popovskij, V. I. Mikhailenko, "Investigation of the surface substrate influence on the peculiarities of 5CB wall-adjacent layers absorption spectra," Proc. SPIE 2731, International Liquid Crystal Workshop on Surface Phenomena, (19 January 1996); https://doi.org/10.1117/12.230648