Preparation of the Antireflective Coating for Laser Using the Porous Carbon Materials

The reduction of laser reflectivity is important as an effective defense to protect people and sensitive equipment. Reducing the reflectivity of surfaces is the most important strategy for decreasing the damages of laser radiation. In this research, the porous pigments are prepared to achieve the lowest percentage of reflection which were used to fabricate antireflective coatings for laser radiation. The porous carbon pigments containing CMK-1 and CMK-3 were prepared and the resulting black pigments were characterized using XRD, FE-SEM and DR-UV-Vis-NIR. The prepared paints were applied on aluminum substrate and the general tests of paints were investigated. The laser reflectivity was evaluated at wavelength of 532 nm that shows these coatings are effective antireflective coating for laser beam.