Temperature-wavelength dependence of Verdet constant of Dy2O3 ceramics

Temperature and wavelength dependence of the Verdet constant of dysprosium sesquioxide (Dy2O3) transparent ceramics has been measured for the temperatures ranging from cryogenic 20K up to room temperature 297 K and for the wavelength range starting from visible 0.6 mu m up to mid-infrared 2.3 mu m. Several absorption bands corresponding to the electronic transitions in Dy2O3 have been identified and removed from the data analysis due to high absorption of the matching wavelengths within these absorption bands. The Verdet constant data has been fitted by the multi-transition model function covering the whole temperature and wavelength range. Such fitted function could be used for the detailed design of magneto-optical devices as well as for the analysis of physical properties of the material itself. (C) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement