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Liquid crystal alignment in cylindrical microcapillaries

Chychłowski M., Yaroshchuk O., Kravchuk R., Woliński T.

Opto-Electronics Review

2012

Vol. 20, No. 1

47-52

A variety of alignment configurations of liquid crystals (LCs) inside the glassy cylindrical capillaries is realized by using alignment materials providing different anchoring. The radial configuration with central disclination line is obtained for homeotropic boundary conditions. In turn, the axial, transversal and tilted alignment structures are realized by using materials for planar anchoring. The uniformity and controlling of the latter structures were provided by photoalignment method. This approach can be further used to control LC alignment in the photonic crystal fibers recognized as advanced elements for different optical devices.