dielectric mirror

A dielectric mirror is a special type of mirror made from layered materials that reflect light very efficiently. These layers are made of transparent substances with different properties, arranged precisely to cause certain wavelengths of light to bounce back strongly through a process called interference. Unlike regular mirrors that rely on a metal coating, dielectric mirrors can reflect specific colors or ranges of light with minimal energy loss, making them useful in lasers, telescopes, and scientific instruments. Their design allows for high reflectivity and durability while maintaining transparency to other wavelengths.