PHOTONIK BRAND Broadband Dielectric Mirrors offer excellent reflectivity of R>99.5% for 700-900nm spectrum.
Dielectric mirrors are often used to produce ultra-high reflectivity mirrors: values of 99.999% or better over a narrow range of wavelengths can be produced using special techniques.
Alternatively, they can be made to reflect a broad spectrum of light, such as the entire visible range or the spectrum of the Ti-sapphire laser. Broadband Dielectric Mirrors of this type are very common in optics experiments, due to improved and advanced techniques that allow inexpensive manufacture of high-quality mirrors. Examples of their applications include laser cavity end mirrors, hot and cold mirrors, thin-film beamsplitters, and the coatings on modern mirrorshades.