Optical materials have become crucial for modern photonics, utilising their luminescent properties for a wide range of applications such as solid-state lighting, display technologies and high-power lasers. Their capacity to incorporate various rare earth dopants allows precise control of emission properties, thereby driving innovative energy-efficient lighting and advanced imaging systems . Among these, garnet-type materials are well known to have the potential to be used in a wide range of optical applications due to their robust structure, high density, and optical properties. Garnet-based compounds such as yttrium aluminum garnet (Y3Al5O12 -YAG) and gadolinium aluminum gallium garnet (Gd3Al2Ga3O12 -GAGG) GAGG, exhibit unique luminescent behaviour, making them suitable for various photonic applications.