Abstract:Liquid crystals (LCs) are attractive for optical devices, such as lenses because of their large birefringence and high response to external field. However, the low-speed response of nematic LCs often becomes an obstacle to the progress of LC devices. In this study, we research the lens effect of ferroelectric LC by using a voltage-gradient cell. As a result, it is found that in order to obtain the lens effect in FLC, the wide cell gap, the large tilt angle and/or the large birefringence of FLC materials are ne… Show more
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