Surface treatment and functionalization has become an extremely popular field, where many researchers from different disciplines combine their talents and efforts. In several cases, the ability to pattern surfaces at very small (sub-micrometer) lengthscales and to control the chemical and/or physical properties of surfaces at this level is crucial. These surfaces can be used in different application fields where improved optical, mechanical or biological properties can enhance the functions of products. A possibility to fabricate these surfaces is provided for example by laser processing techniques. However, generally these methods are sequential and are limited to structures with feature size between 10-30μm. In order to solve this problem, techniques involving largearea maskless surface structuring methods for rapid fabrication of two and three dimensional (2D and 3D) structures are required. An innovative solution for high speed surface patterning of periodic structures is Direct Laser Interference Patterning (DLIP). Here, periodic structures can be produced in different materials including metals, ceramics, polymers and coatings in a single step process. Until now laser treatment before adhesive bonding is done especially using commercial pulsed Nd:YAG or fiber laser with pulse duration between 100-300 ns . The heat input during the DLIP process is compared to other commercial laser structuring methods significantly lower and therefore also suitable for applications of thin metal or plastic foils. The DLIP method works with a high surface rate.
原文链接
分享
引用
