Experimental study of phase-step broadening by fringing fields in a three-electrode liquid-crystal cell

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 o...

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Bibliographic Details
Published in:Applied optics (2004) 2005-05, Vol.44 (15), p.2989-2995
Main Authors: Bahat-Treidel, Eldad, Apter, Boris, Efron, Uzi
Format: Article
Language:English
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Summary: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.
ISSN:1559-128X
DOI:10.1364/ao.44.002989