YAG CrystalPosted by Ningliu on May 13th, 2017 Undoped YAG Crystal is an excellent material for UV-IR optical windows, particularly for high temperature and high energy density applications. The mechanical and chemical stability is comparable to sapphire crystal, but YAG is unique with non-birefringence and available with higher optical homogeneity and surface quality. Up to 3 YAG boule grown by CZ method, as-cut blocks, windows and mirrors are available from CryLight. Specifications Specifications: Orientation: < 111 > +/-5deg Diameter Tolerance : +0.0 /-0.1mm Thickness Tolerance: +/-0.2mm Surface Quality: better than 10/5 scratch/dig Parallelism: < 30 arcsec Flatness: < λ/8 @632.8nm Perpendicularity: < 5 arcmin Wavefront Distortion: < λ/2 @632.8nm Coating: Coating upon Request Properties: Crystal Structure Cubic Density 4.5 g/cm3 Transmission Range 250 - 5000 nm Melting Point 1970 °C Specific Heat 0.59 W·s /g /K Thermal Conductivity 14 W/m /K Thermal Shock Resistance 790 W /m Thermal Expansion 6.9x10-6 /K dn/dT, @ 633nm 7.3x10-6 /K-1 Mohs Hardness ~ 8.5 Refractive Index 1.8245 @ 0.8mm, 1.8197 @ 1.0mm, 1.8121 @ 1.4mm Like it? Share it!More by this author |