AF45 glass substrates are optical quality float glass wafers. They are widely used in applications that require a flat, smooth, and clean surface for thin film deposition, imaging, and other optical experiments. The main advantage of AF45 glass substrates is their high transparency and thermal stability, making them suitable for a range of applications, including those in the fields of photonics, optoelectronics, and display technology. Additionally, AF45 glass substrates are relatively low cost compared to other glass substrates, making them an attractive option for a variety of research and development applications.