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.
© 2010 Optical Society of America
Original Manuscript: November 9, 2009
Revised Manuscript: December 23, 2009
Manuscript Accepted: December 30, 2009
Published: February 4, 2010
Jin Seog Gwag, Jonghoon Yi, and Jin Hyuk Kwon, "Determination of actual surface azimuthal anchoring strength using a wedge-shaped liquid crystal cell," Opt. Lett. 35, 456-458 (2010)