title: Light-induced gliding of the easy orientation axis of a dye-doped nematic liquid crystal.
abstract: We studied the effect of light-induced gliding of the easy axis of dye-doped nematic liquid crystal on an aligning polymer surface. The observed drift of the easy axis is over tens of degrees and is caused by light-induced anisotropic adsorption and/or desorption of dye molecules on or from the aligning layer in the presence of light-induced bulk torque. We present a theoretical model that explains the experimental data in terms of the light-induced changes of the adsorbed dye molecules angular distribution due to their exchange with the dye molecules from the liquid crystal bulk.
authors.affiliation: Institute of Physics, National Academy of Sciences of Ukraine, 46 Prospect Nauki, Kyiv, Ukraine. fedoren@iop.kiev.ua
authors.forename: Denis
authors.initials: D
authors.lastname: Fedorenko
authors.forename: Kostyantyn
authors.initials: K
authors.lastname: Slyusarenko
authors.forename: Elena
authors.initials: E
authors.lastname: Ouskova
authors.forename: Victor
authors.initials: V
authors.lastname: Reshetnyak
authors.forename: KiRyong
authors.initials: K
authors.lastname: Ha
authors.forename: Ridvan
authors.initials: R
authors.lastname: Karapinar
authors.forename: Yuriy
authors.initials: Y
authors.lastname: Reznikov