Doubling down on metasurfaces: Bilayer device can control many forms of polarized light / Twisting light: Novel metasurface offers compact solution for circularly polarized light / Advancing light control: New opportunities for metasurfaces in optoelectronics / Silicon metasurfaces unlock broad-spectrum infrared imaging / Janus-like metasurface technology shows different optical responses according to the direction of light / Research team creates hybrid resonant metasurfaces with configurable structural colors / Nonlinear optical metasurface achieves electrically tunable third-harmonic generation / Novel metasurface enables temperature-adaptive radiative cooling / Metasurfaces: Tiny tech with big potential / Study: Giant ultrafast dichroism and birefringence with active nonlocal metasurfaces