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Determination of actual surface azimuthal anchoring strength using a wedge-shaped liquid crystal cell
Jin Seog Gwag1, Jonghoon Yi, Jin Hyuk Kwon
1Department of Optics and Photonics, National Central University, No. 300, Jhongda Road, Jhongli City,Taoyuan County, Taiwan 32001, China.
Optics Letters
|February 18, 2010
Abstract:
We present a method that determines the actual surface azimuthal anchoring strength based on the torque balance. It is found by an optical technique of measuring simultaneously the cell thicknesses and twist angles at two regions of a wedge-type liquid crystal cell whose cell thickness varies continuously between different positions in the cell.
