Abstract
We present a theoretical calculation of the dependence of reflectivity Rpp of
the improved fully leaky waveguide geometry, which comprises pyramid, matching
fluid, and strongly anchored hybrid-aligned nematic liquid crystal (NLC) cell on the
internal angle. The calculation is based on the multi-layer optical theory and the
elastic theory of liquid crystals. For different sums of flexoelectric coefficients
e11 and e33, the curve of Rpp moves a distance to the left or the right relative to
the case of ignoring the flexoelectric effect and the distance of the movement
varies with different flexoelectric coefficients. Consequently, the sum of
flexoelectric coefficients can be explored by measuring the distance of the
movement.
© 2012 Chinese Optics Letters
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