TSAG Faraday Crystals Product Product Product

TSAG Faraday crystalsTerbium-scandium-aluminum garnet (TSAG) single crystal grown by the Czochralski method was annealed in a reducing or an oxidizing atmosphere. The oxidation state of terbium cations was studied using transmission spectra and magnetic susceptibility. By annealing in the reducing atmosphere,Website:http://www.meta-laser.com, Tb4+ was reduced to Tb3+. In the case of annealing in the oxidizing atmosphere, some of Tb3+ ions were oxidized to Tb4+. Verdet constant and extinction ratios were measured after annealing in both atmospheres. The highest Verdet constant was obtained for the TSAG annealed in the reducing atmosphere (for λ = 649.1 nm V = 8.580 x 10-3 deg.Oe-1.cm-1). The extinction ratio of the sample annealed in the oxidizing atmosphere showed the highest value of 40.35 dB. FeaturesVerdet constant 20% higher than TGGAbsorption 30% lower than TGG