Development of a quasi-ring airy vortex beam using an all-dielectric geometric phase metasurface

The quasi-ring Airy vortex beam (QRAVB) is a special type of vortex beam was recently proposed, which performs efficiently in turbulent environments. However, bulky optical elements, such as the spatial light modulator, used for generating the QRAVB hinder its application in modern integrated optica...

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Bibliographic Details
Published in:Physica scripta 2023-12, Vol.98 (12), p.125523
Main Authors: Cheng, Kaixiang, Hu, Zheng Da, Wu, Jingjing, Wang, Jicheng, Khakhomov, Sergei
Format: Article
Language:English
Subjects:
metasurface
orbital angular momentum
quasi-ring airy vortex beam
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Summary:The quasi-ring Airy vortex beam (QRAVB) is a special type of vortex beam was recently proposed, which performs efficiently in turbulent environments. However, bulky optical elements, such as the spatial light modulator, used for generating the QRAVB hinder its application in modern integrated optical communication devices. Here, we present a type of compact optical element developed for generating the QRAVB by using an all-dielectric geometric phase metasurface. We simulate the performance of the designed metasurface and discuss several properties, such as autofocusing and self-healing of the metasurface-generated beams, are similar to Airy beams. This type of metasurface has potential applications in integrated free-space optical communication and on-chip optical information processing in the future.
ISSN:0031-8949
1402-4896
DOI:10.1088/1402-4896/ad0d94