Undoped YAG Laser Crystal

Undoped YAG Crystal is an excellent material for UV-IR optical windows, particularly for high temperature and high energy density application. 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. Advantages of Undoped YAG: High thermal conductivity, 10 times better than glasses; Extremely hard and durable; Non-birefringence; Stable mechanical and chemical properties; High bulk damage threshold; High index of refraction, facilitating low aberration lens design.  Features of Undoped YAG: Transmission in 0.25-5.0 mm, no absorption in 2-3 mm; High thermal conductivity; High index of refraction and Non-birefringence.  Basic properties of Undoped YAG: Density 4.5gcm3; Transmission Range 250-5000nm; Melting Point 1970°C; Specific Heat 0.59 W.sgK; Thermal Conductivity 14 WmK; Thermal Shock Resistance 790 Wm; Thermal Expansion 6.9x10-6K; dndt, at 633nm 7.3x10-6K-1; Mohs Hardness 8.5; Refractive Index 1.8245 at 0.8mm, 1.8197 at 1.0mm, 1.8121 at 1.4mm. You can customise U to your nndoped YAG needs. If you do not find suitable specifications for your application.