Antireflective Double Layer Coating Based on SiO₂/MgF₂ Films with Various Substrate BK7 Glass and Corning Glass

Abstract

To preserve the environment and raise the standard of production and life, the efficient utilization of solar energy is particularly important. Without coating treatment, interface reflection will cause the optical system’s transmitted light intensity to decrease, making it less effective to operate. This paper introduces the general situation for antireflective coatings consisting of SiO2/MgF2 films, fabricated on the various substrate BK7 glass and corning glass, by using a combination of spin coating and spray pyrolysis methods. This paper explains the optical characteristics impacts caused by the usage of different substrate. Comparing SiO2/MgF2 films coated on BK 7 glass to those coated on Corning glass, we found that the former has a higher transmittance value in the 350-1000 nm wavelength range, making it more effective for antireflective double layer coating.