Mayte Gómez-Castaño and coworkers from the Nanopto group have developed an up scalable approach for the fabrication of negative index metamaterials.
Combining the low-cost techniques of soft nanoimprinting and electrodeposition, researchers produce fishnet metamaterials featuring strong negative indices at visible and near-infrared frequencies. Besides, they prove the change of the operation wavelength when infiltrating liquids in between the nanostructures, showing the potential of these metamaterials as optical sensors.
Read the full publication here. (Open source)