Abstract: A method for manufacturing a photonic crystal device provided with a plasmonic waveguide includes: preparing a membrane; applying, in a programmed manner, a focused ion beam on the membrane, in a manner such as to obtain a photonic crystal made up by a regular planar arrangement of through holes positioned according to a preset lattice and also comprising a resonant cavity. The method also provides a conic plasmonic waveguide at the resonant cavity, through chemical vapour deposition induced by a focused electron beam. The focused electron beam that induces la deposition is controlled in such a manner to gradually reduce the transverse section of the electron beam starting from the base up to the tip of the projecting structure, maintaining the position of the electron beam constant.

Abstract: Method for manufacturing an optical detection device includes producing metal nanospheres on a substrate (2). The process also includes the following operations: producing (100) on the substrate (2) lithographic nanostructures (4a, 4b, 4c) capable of receiving the metal nanospheres,—performing (102) a self-aggregative deposition of at least one metal in such a way as to create a respective metal nanosphere in each lithographic nanostructure (4a, 4b, 4c).

Abstract: Concentrator and locator device (1) of a solute comprising a substrate (2) and a plurality of prismatic lithographic micro-structures (4) orthogonally emerging from the substrate (2). The microstructures (4) are spaced from one another in a periodical manner so as to make such a substrate (2) super-hydrophobic.