Abstract

We report a rapid nano-imprinting technique to pattern the liquid crystal alignment of a Pancharatnam–Berry phase microlens array. Through implementing a single-side aligned cell, we demonstrate a switchable microlens array with fast response time and low operation voltage. Further investigation of focusing property as well as imaging capability ensure the good quality of the microlens array. Besides planar structures, this method is also promising for patterning liquid crystal alignment on curvilinear surfaces.

© 2018 Optical Society of America

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