Optical Coatings and Gratings

Optical coatings and gratings are engineered layers or periodic surface structures that control how light reflects, transmits, or diffracts at a material interface, allowing researchers to suppress unwanted reflections, filter specific wavelengths, or split light into its component parts with high precision. Modern work in this area extends well beyond simple thin-film stacks, drawing on nanostructured architectures—including biomimetic surfaces inspired by moth eyes and photonic crystals grown by glancing angle deposition—to achieve optical performance that bulk materials alone cannot provide. These advances matter because better antireflective and dispersive surfaces translate directly into more efficient solar cells, sharper spectroscopic instruments, and finer nanofabrication tools. Active research questions include how to make such nanostructured coatings durable and scalable for real-world manufacturing, and how to design surfaces whose optical response can be dynamically tuned rather than fixed at the time of fabrication.

Works

53,974

Total citations

443,746

Keywords

Antireflective CoatingsNanostructuresThin-Film MaterialsOptical GratingsBiomimetic SurfacesGlancing Angle Deposition