A Greek research center has developed a novel laser processing capable to provide functional (antibacterial, friction reducing etc) antireflective coatings. The process can be applied to a variety of transparent materials including sapphire, silica glass etc.
The Greek researchers propose an innovative method of creating antireflective coatings. In comparison with traditional approaches for improving a product’s surface properties, the proposed technology is following a totally new approach. Traditional approaches for surface improvement use techniques that deposit thin coating of materials onto product’s surfaces. The approach provides controlled formation of durable functional (micro or nano- structured) surface textures that mimic skin structures found in different insects (biomimetic surfaces). More specifically, the Greek researchers use an advanced laser-processing strategy, developed after many years of research, based on self-organization of material surface, to mimic the specific topography of the integument of bark bugs, wings and cicada wings.
The initial results of this process are extremely positive. The final product is highly antireflective and allows a wide angle of reading the indication. The coating is also providing antifogging, super-hydrophobic (or super-hydrophilic, it is an option) and antibacterial properties to the types of glass used. Since glass is a hydrophilic material, the proposed process is enhancing this property and creates antifogging property on top of the antireflective coating. Self-cleaning, hydrophobic and super-hydrophobic surfaces are obtained by applying coatings of a low surface energy material on top of it. Other properties may be also obtained after investigation.
The Greek researchers are looking for the following types of collaborators. Luxury or smart watch manufacturers, micro-optics manufacturers, optical sensor manufacturers, lidar manufacturers. The collaboration sought is commercial agreement with technical assistance or joint venture agreement.