Reconfigurable metasurface hologram by utilizing addressable dynamic pixels
arXiv:2002.03574 · doi:10.1364/OE.27.021153
Abstract
The flatness, compactness and high-capacity data storage capability make metasurfaces well-suited for holographic information recording and generation. However, most of the metasurface holograms are static, not allowing a dynamic modification of the phase profile after fabrication. Here, we propose and demonstrate a dynamic metasurface hologram by utilizing hierarchical reaction kinetics of magnesium upon a hydrogenation/dehydrogenation process. The metasurface is composed of composite gold/magnesium V-shaped nanoantennas as building blocks, leading to a reconfigurable phase profile in a hydrogen/oxygen environment. We have developed an iterative hologram algorithm based on the Fidoc method to build up a quantified phase relation, which allows the reconfigurable phase profile to reshape the reconstructed image. Such a strategy introduces actively controllable dynamic pixels through a hydrogen-regulated chemical process, showing unprecedented potentials for optical encryption, information processing and dynamic holographic image alteration.
References in corpus (9)
- Dynamic plasmonic colour display
- Metasurface holography: from fundamentals to applications
- Addressable metasurfaces for dynamic holography and optical information encryption
- Strain multiplexed metasurface holograms on a stretchable substrate
- Large Area Metalenses: Design, Characterization, and Mass Manufacturing
- Dynamic Color Displays Using Stepwise Cavity Resonators
- Optical properties of MgH2 measured in situ in a novel gas cell for ellipsometry/spectrophotometry
- Hydrogen-regulated chiral nanoplasmonics
- Experimental Demonstration of Phase Modulation and Motion Sensing Using Graphene-Integrated Metasurfaces