Generation of Airy beam arrays in real and K spaces based on a dielectric metasurface

Airy beams are widely used in various optical devices and optical experiments owing to their unique characteristics such as self-acceleration, self-recovery, and non-diffraction. Here we designed and demonstrated a metasurface capable of encoding two phase distributions independently in dual circular polarization channels. We experimentally observed the generated Airy beam arrays loaded on the metasurface in the real and K spaces. Compared with the traditional method, such method provides a more efficient solution to generate large capacity Airy beam arrays with switchable working modes in the broadband spectrum. The results may pave the way for the integration and miniaturization of micro-nano devices and provide a platform for information processing, particle manipulation, space-time optical wave packets, and Airy lasers. (C) 2021 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

Automated summary

A new metasurface capable of encoding two phase distributions independently and generating Airy beam arrays has been designed, providing a more efficient solution for optical devices and experiments. This technology has the potential to pave the way for integration and miniaturization of micro-nano devices.