Optical properties, magnetooptical properties and terahertz time-domain spectrum of Tb3Sc2Al3O12 crystals grown by optical floating zone methods

Tb3Sc2Al3O12 crystals have been grown by optical floating zone methods for the first time. The XRD patterns of TSAG crystals match well with the standard cards and the full width half maximum of the analyzed peaks is 0.00832°. The unique emission properties of TSAG crystals have been demonstrated in detail. The Verdet constant of TSAG crystals in the whole region is nearly 20% higher than that of commercial TGG crystals. The terahertz time domain spectrum of TSAG crystals has been analyzed for the first time, and we find that the refractive index is nearly 2, and the absorption coefficient is 2/cm from 1THz to 5 THz.