Preparation of Antireflection Coatings from Silicon Dioxide on Glass and Quartz by the Sol-Gel Method with Oligoethers

摘要

Antireflection coatings with a low refractive index (1.18-1.23) have been prepared on silicate glass and optical quartz from mesoporous silicon dioxide synthesized by the sol-gel method in the presence of oligoethers. The optimum concentration of the oligoester in the sol is equal to 1.5-2.5 wt %. For the single-layer double-sided coating, the maximum transmission is equal to 99.0% for the silicate glass and 99.9% for quartz.