1)Material:sapphire 2)Crystal orientation:C,A,R 3)Diameter:1-180mm 4)Thickness:0.1-50mm 5)S ... GaN for blue LED and laser diodes, while R-plane sapphire substrates are used for the hetero ... 0.0053.Material:sapphire (α-Al2O3≥99.99%)4.Crystal orientation:C,A,R5.Surface Roughness:Rz0.016.S ... 01mm8.Transmission: at 633nm>85%Our main products include optical components, laser products, Lenses assembly and other ...