Magneto-optical property of terbium-lutetium-aluminum garnet crystals

Mixed terbium lutetium aluminum garnet Tb2.2Lu0.8Al5O12 (LuTAG) single crystal was grown by Czochralski technique successfully. The structure had been analyzed by X-ray diffraction. The paramagnetic behavior was observed in magnetic measurement. Magneto-optical properties and thermal conductivity of LuTAG had been studied in detail and compared with these of TGG sample. The crystal exhibited a high thermal conductivity and very high transmittance, particularly in visible and near-infrared region, indicating terbium-lutetium-aluminum garnet could be a potential magneto-optical material using in high-power laser system.