Metasurface orbital angular momentum holography

Haoran Ren*, Gauthier Briere, Xinyuan Fang, Peinan Ni, Rajath Sawant, Sébastien Héron, Sébastien Chenot, Stéphane Vézian, Benjamin Damilano, Virginie Brändli, Stefan A. Maier, Patrice Genevet

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

75 Citations (Scopus)
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Abstract

Allowing subwavelength-scale-digitization of optical wavefronts to achieve complete control of light at interfaces, metasurfaces are particularly suited for the realization of planar phase-holograms that promise new applications in high-capacity information technologies. Similarly, the use of orbital angular momentum of light as a new degree of freedom for information processing can further improve the bandwidth of optical communications. However, due to the lack of orbital angular momentum selectivity in the design of conventional holograms, their utilization as an information carrier for holography has never been implemented. Here we demonstrate metasurface orbital angular momentum holography by utilizing strong orbital angular momentum selectivity offered by meta-holograms consisting of GaN nanopillars with discrete spatial frequency distributions. The reported orbital angular momentum-multiplexing allows lensless reconstruction of a range of distinctive orbital angular momentum-dependent holographic images. The results pave the way to the realization of ultrahigh-capacity holographic devices harnessing the previously inaccessible orbital angular momentum multiplexing.

Original languageEnglish
Article number2986
Number of pages8
JournalNature Communications
Volume10
Issue number1
DOIs
Publication statusPublished - 1 Dec 2019
Externally publishedYes

Bibliographical note

Copyright © The Author(s) 2019. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.

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