GSGG:Mg:Cr4+ (Gadolinium-scandium-gallium garnet doped with chromium and magnesium)
GSGG:Mg:Cr4+ refers to Gadolinium-scandium-gallium garnet crystals that have been doped with both Chromium (Cr4+) and Magnesium (Mg2+) ions. The addition of these ions can alter the optical properties of the crystal, making it suitable for various applications in the field of photonics such as solid-state laser systems and frequency conversion.