Optical thin films

Optical thin films are ultra-thin layers of materials applied to surfaces, often just a few nanometers to micrometers thick, designed to control light transmission, reflection, or absorption. They are used in products like camera lenses, sunglasses, and solar panels to enhance performance by reducing glare, increasing durability, or improving efficiency. These films work through interference effects, where light waves bounce and combine within the layers, selectively allowing or blocking specific wavelengths. Their precise design requires careful consideration of thickness, material properties, and wavelength to achieve desired optical properties.