Université Jean Monnet Saint-Étienne

Hydromecanique Et Frottement

Manutech-Usd

Centre National De La Recherche Scientifique

Centre National De La Recherche Scientifique-Cnrs

Thomas Kämpfe

Laurent Dubost

Xxx Sedao

An optical device for transmitting/reflecting electromagnetic radiation in a wavelength range of an electromagnetic spectrum. The optical device includes a substrate made of a first material, a coating layer made of a second material that is different from the first material, and a a plurality of cavities formed in surface of the device. The plurality of cavities extend through the coating layer and are partially sunk into the substrate.

Optical device with surface texturing extending through coating layer into substrate

An optical device suitable for transmitting/reflecting electromagnetic radiation in a wavelength range of the electromagnetic spectrum. The device comprises at least a first coating layer made of a first material, a substrate made of a material different from the first material, and surface texturing forming cavities in the device. A lower layer, disposed directly below the first coating layer, is either a second coating layer made of a material different from the first material or the substrate itself. The lower layer has a predetermined thickness. The optical device has cavities that extend through the first coating layer and are sunk into the lower layer through at least part of its thickness. This structure enhances the optical properties of the device for specific applications in electromagnetic radiation transmission or reflection.

Multilayer optical device with surface texturing and extended cavities for electromagnetic radiation

Growing community of inventors

Corbas, France

Thomas Kämpfe