Multifunctional Electromagnetic Control in Cascaded Metasurfaces Enabled by Directional‐Rotational Configurations

ABSTRACT Metasurfaces offer versatile platforms for multifunctional electromagnetic‐wave manipulation, yet extending the number and diversity of accessible functions remains challenging because conventional multiplexing schemes rely on independently addressable physical degrees of freedom. Here, we demonstrate a directional‐rotational cascaded (DRC) metasurface in which the electromagnetic response is jointly controlled by propagation direction, relative in‐plane rotation, and incident‐field condition. A single fabricated two‐layer device experimentally realizes ten heterogeneous functions spanning electromagnetic computing, holography, focusing, and vortex‐beam generation. Functions are selected by directional‐rotational configurations and input conditions, rather than by dedicated physical channels. This configuration‐dependent framework provides a compact and scalable route to high‐capacity electromagnetic information processing and multifunctional wave control.