Directionally Asymmetric Holographic Imaging for Arbitrary Polarization States Using Janus Metasurfaces (Advanced Optical Materials 32/2025)

Janus Metasurface Hologram A single-layer titania Janus metasurface hologram achieves directionally asymmetric imaging in the visible range. By integrating the Dammann grating principle and precise phase control, it generates high-fidelity holographic images for arbitrary polarizations, enabling compact and versatile optical technologies. More details can be found in the Research Article by Yao-Wei Huang and co-workers (DOI: 10.1002/adom.202501546).