Fig. 7From: TEM and STEM Studies on the Cross-sectional Morphologies of Dual-/Tri-layer Broadband SiO2 Antireflective Filmsa Transmittance spectrum of dual-layer AR film on fused silica substrate. b Transmittance spectrum of tri-layer AR film on fused silica substrate. c Transmittances of the dual-layer AR films after 7, 35, and 63 daysBack to article page