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(a) Front view: schematic diagram of rubbing pattern on one substrate. Each pixel is wide and represents the azimuthal rubbing direction (0° or 90°). (b) Side view: (cross section) of cell. represents the electric field coherence length, such that the director in the bulk is approximately for distances from the substrates . Note that figure does not show the azimuthal homogenization of the director away from the rubbed substrate.
(a) Intensity vs angle for . Only the central peak is present. (b)–(d) Intensity vs angle for three different orientations of the polarizer. Temperature and applied voltage rms. Efficiency is indepedent of . Note the decrease of the central peak intensity from the field-off case (a) due to diffraction, especially into the peaks.
Intensity vs applied voltage for diffraction peak at .
(a) Diffracted light for two-dimensional checkerboard pattern ( central peak is blocked out). Notice the presence of weak higher order peaks. (b) Diffracted light for the one-dimensional pattern [see Fig. 1(a)], with central peak blocked out.
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