n2 Explorer: Gd3Sc2Ga3O12 (Gadolinium scandium gallium garnet, GSGG)
Adair et al. 1989
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About Gadolinium scandium gallium garnet
Gadolinium scandium gallium garnet (Gd3Sc2Ga3O12, or GSGG) is a synthetic crystalline material renowned for its exceptional thermo-optical properties and broad transparency range in the visible to near-infrared spectrum. With a refractive index of approximately 1.97 at 632.8 nm, GSGG exhibits excellent thermal stability and mechanical robustness. This material is often used as a laser host crystal for neodymium-doped solid-state lasers and other high-power laser applications. Its thermal and optical characteristics make it ideal for use in advanced optical systems, including those deployed in high-stress environments. GSGG can also serve as a substrate for the epitaxial growth of other garnet structures.
Other names and variations:- Gd3Sc2Ga3O12
- GSGG