The fringing-field broadening of a phase-step profile and its dependence on the thickness of a liquid-crystal (LC) cell were studied in a simple, three-electrode LC cell structure consisting of two lateral electrodes biased with a differential voltage and a third, grounded, electrode placed on the opposite substrate. The results were compared both with an approximate analytical model developed earlier for a fringe-field-broadening kernel and with computer simulations. Good agreement between the experiment and the theoretical as well as the simulation results is shown.
© 2005 Optical Society of America
(160.1190) Materials : Anisotropic optical materials
(160.3710) Materials : Liquid crystals
(230.2090) Optical devices : Electro-optical devices
(230.3720) Optical devices : Liquid-crystal devices
Eldad Bahat-Treidel, Boris Apter, and Uzi Efron, "Experimental study of phase-step broadening by fringing fields in a three-electrode liquid-crystal cell," Appl. Opt. 44, 2989-2995 (2005)