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Coherent control of optical waves by scattering from 2D plasmonic surfaces is a very active field with the goal of wavefront shaping an incoming light beam via nanostructured surfaces. Here we report gold hyperuniform surfaces fabricated by electron beam lithography and designed to interact with visible radiation. We observe omnidirectional light diffraction in the far-field indicating successful...
Resonant optical antennas are ideal for nanoscale nonlinear optical interactions due to their inherent strong local field enhancement. Indeed second- and third-order nonlinear response of gold nanoparticles has been reported. Here we compare the on- and off-resonance properties of aluminum, silver, and gold nanoantennas, by measuring two-photon photoluminescence (TPPL). Remarkably, aluminum shows...
Photonic crystals have proven their potential and are nowadays a familiar concept. They have been approached from many scientific and technological flanks. Among the many techniques devised to implement this technology self‐assembly has always been one of great popularity surely due to its ease of access and the richness of results offered. Self‐assembly is also probably the approach entailing more...
Self‐assembly techniques are widely used to grow ordered structures such as, for example, opal‐based photonic crystals. Here, we report on photonic glasses, new disordered materials obtained via a modified self‐assembling technique. These random materials are solid thin films which exhibit rich novel light diffusion properties originating from the optical properties of their building blocks. This...
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