Abstract
Topological lightwave technologies are expected to be applied in a wide range of emerging optical fields such as -plates, one of the most attractive devices in this research area, prepared by controlling the high-resolution alignment patterning of liquid crystals. Here, we present a simple and direct fabrication technique of a -plate that is able to oscillate a vector beam, by employing our newly developed photoalignment concept termed scanning wave photopolymerization (SWaP). SWaP generates precise arbitrary molecular alignment patterns concurrent with irradiated light patterns, successfully fabricating a polymer film with a radial molecular alignment arranged in an array pattern in a single step. This array patterned alignment structure was able to simultaneously generate a vector beam, indicating that SWaP can be utilized for producing such topological lightwave applications.
© 2019 Optical Society of America
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