Low voltage tunable liquid crystal lens.


In this Letter, we report a method to prepare a liquid crystal (LC) lens based on a variable pretilt angle of a photoalignment (PA) layer. With precise control of the irradiance, such PA provides good control on the pretilt angle that can be tuned in the range of 1°-89°. Therefore, the precise control of the irradiance generates a spatially varying pretilt… (More)
DOI: 10.1364/OL.38.004116



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