SAN DIEGO--Filmetrics has announced an online reflectance calculator for simulation of reflectance spectra. It calculates the optical response of thin-film structures consisting of up to 20 individual layers in the spectral range between 200 nm and 2000 nm. It can be used to design functional materials such as anti-reflection and high-reflectance coatings and optical filters. With already well over 1,500 visitors per month, the calculator enjoys great popularity.
The Filmetrics calculator uses the complex-matrix form of the Fresnel equations, which is also used by the calculating engine of all Filmetrics thin-film analyzers. For the film materials, the user can either enter a specific refractive index value or select from 60 common material files from Filmetrics’ vast database, many of which are also available for download.
With years of experience in the film thickness measurement field and with offices worldwide, Filmetrics provides simple-to-use instruments and unparalleled support. Headquartered in San Diego, CA, Filmetrics has a full line of film thickness measurement systems and is continually developing new products and technologies that bring greater efficiency to thin-film metrology. Filmetrics was founded in 1995 and quickly established itself as the leader in the tabletop thin-film measurement industry.