Multi-layer dielectric coatings

Multi-layer dielectric coatings are thin films made of non-conductive materials layered alternately to manipulate light. These coatings use precise thicknesses to enhance reflection, transmission, or absorption of specific wavelengths, improving the performance of optical devices like lenses, mirrors, or filters. By controlling how light interacts at each interface, multi-layer coatings can reduce glare, increase durability, and optimize optical clarity, making them essential in fields like photography, astronomy, and laser technology. Their design relies on principles of interference, where light waves strengthen or cancel each other to achieve the desired optical effects.