Flexible Metasurface Holograms

TL;DR

This paper demonstrates broadband, flexible, helicity multiplexed metasurface holograms operating in the visible range, enabling high-fidelity, interchangeable holographic images on non-planar surfaces for practical applications.

Contribution

It introduces a flexible, conformable metasurface hologram with helicity multiplexing using gold nanorods on a flexible substrate, expanding potential for real-world use.

Findings

Achieved high-fidelity off-axis holographic images

Demonstrated helicity-controlled image interchangeability

Operated in the visible spectrum on flexible substrates

Abstract

Metasurface holograms are typically fabricated on rigid substrates. Here we experimentally demonstrate broadband, flexible, conformable, helicity multiplexed metasurface holograms operating in the visible range, offering increased potential for real life out-of-the-lab applications. Two symmetrically distributed holographic images are obtained when circularly polarized light impinges on the reflective-type metasurface positioned on non- planar targets. The two off-axis images with high fidelity are interchangeable by controlling the helicity of incident light. Our metasurface features the arrangement of spatially varying gold nanorods on a flexible, conformable epoxy resist membrane to realize a Pancharatnam- Berry phase profile. These results pave the way to practical applications including polarization manipulation, beam steering, novel lenses, and holographic displays.