Undoped Yttrium Aluminium Garmet (Y₃Al₅O₁₂)

   Undoped YAG is a new substrate and window material that can be used for both UV and IR optics. It is particularly useful for high temperature and high-energy applications. YAG shows no trace absorption in the 2-3um region where glasses tend to be highly absorbent due to the strong H2O band. Sapphire is also slightly birefringence. The mechanical and chemical stability of YAG is similar to Sapphire, but YAG is not birefringence and is available with high optical homogeneity.

   Based on the patented new growth technique of Temperature Gradient Technique(TGT), CSSO has successfully produced large size of Dia. 45x150mm and high optical homogeneity.

 Wide Transmission Range:

• Useful from 250nm to 5000nm

• No absorption in 2-3um

 Excellent Thermal and Opto-Mechanical Properties:

• 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

 Specifications: