These materials are characterised by high light output, high energy resolution, short decay times, resistance to environmental conditions and high mechanical stability, all of which contribute to their effectiveness in advanced optical technologies As regards the crystal structure of garnets, the typical garnets have a general formula A3B2C3O12. Within the family of garnet-type materials, Gd3In2Ga3O12 (GIGG) crystallizes in the cubic space group 𝐼𝑎3 ̅ 𝑑 (# 230) with lattice parameters a = 12.6669 Å, V = 2032.42 Å 3 . The A-site ion is located at the dodecahedral 24c site, which has two-fold rotational axes 222 (D2) site symmetry and is coordinated by eight oxygen ions. The B-site ion is situated in the octahedral 16a site with a 3 ̅ (C3i = S6) site symmetry, coordinated by six oxygen ions.