Anti-Reflective Coating

Syntec Optics has deep expertise in the anti-reflective coating solutions. Anti-reflection coatings are used to reduce reflection, increase transmission, and enhance the contrast of your optical systems suppressing residual reflection or eliminating ghost images. Whenever a ray of light moves from one medium to another (such as when light enters a sheet of glass after traveling through the air), some portion of the light is reflected from the surface between the two media. The anti-reflective coating works on the principle of destructive interference, where out of phase beams cancel each other resulting in reduced reflection. Index of refraction of coating, the wavelength of light used, index of refraction of the substrate, angle of incident light and coating thickness influence the transmission properties of anti-reflective coating.

Single-layer dielectric coatings can be used to create a simple anti-reflection coating at a single wavelength, however, to create an anti-reflection coating over a broader range of wavelengths is typically achieved utilizing several alternating high and low index dielectric materials. By using two or more layers, broadband antireflection coatings which cover the visible range (400-700 nm) with maximum reflectivities of less than 0.5% are commonly achievable. Anti-reflection coating applications include precision optical systems containing many transmitting elements, low-light systems, applications demanding suppressed residual reflection and reduced optical losses, etc.

SyntecOptics.com is your one-stop-shop for all your anti-reflective coating needs. We design durable anti-reflection coatings for your specific applications and wavelengths to optimize the performance of your optical systems.