High-performance achromatic flat lens by multiplexing meta-atoms on a stepwise phase dispersion compensation layer.

ABSTRACT: Flat optics have attracted interest for decades due to their flexibility in manipulating optical wave properties, which allows the miniaturization of bulky optical assemblies into integrated planar components. Recent advances in achromatic flat lenses have shown promising applications in various fields. However, it is a significant challenge for achromatic flat lenses with a high numerical aperture to simultaneously achieve broad bandwidth and expand the aperture sizes. Here, we present the zone division multiplex of the meta-atoms on a stepwise phase dispersion compensation (SPDC) layer to address the above challenge. In principle, the aperture size can be freely enlarged by increasing the optical thickness difference between the central and marginal zones of the SPDC layer, without the l

SUBMITTER: Lin J 

PROVIDER: S-EPMC11880545 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature