Next-generation optics in just two minutes of cooking time

(Ecole Polytechnique Fédérale de Lausanne) One of the key building blocks of flexible photonic circuits and ultra-thin optics are metasurfaces. And EPFL engineers have now discovered a simple way of making these surfaces in just a few minutes — without needing a clean room — using a method already employed in manufacturing. Their findings have just been published in Nature Nanotechnology.