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Published November 20, 2019 | public
Journal Article

Vectorial holograms with a dielectric metasurface: ultimate polarization pattern generation

Abstract

Controlling the polarization of light has been of interest for various applications in laser materials processing, display systems, and spectroscopy among others. Despite great advancements, the level of control over the polarization of light using naturally birefringent materials and liquid crystals is still limited. In recent years, dielectric metasurfaces have enabled an unprecedented control over the polarization and phase of light. Here, we demonstrate vectorial holograms with almost arbitrary polarization patterns using structurally birefringent dielectric metasurfaces. Using a modified Gerchberg-Saxton algorithm and converting the red–green–blue data in arbitrary color images to Stokes parameters, we show that the demonstrated metasurfaces can store and project color image data in the polarization state of a monochromatic hologram. In addition to holograms with enhanced security and data storage capacity, we believe that the developed concepts and methods will spur new applications in advanced structured illumination techniques, and more generally, whenever a complex polarization pattern is required.

Additional Information

© 2019 American Chemical Society. Received: May 8, 2019; Published: September 18, 2019. This work was supported by the DARPA EXTREME program. We gratefully acknowledge critical support and infrastructure provided for this work by the Kavli Nanoscience Institute at Caltech. The authors declare no competing financial interest.

Additional details

Created:
August 19, 2023
Modified:
October 18, 2023