High Power Laser Science and Engineering, 2018, 6 (1): 010000e2, Published Online: Jul. 2, 2018
Faraday effect measurements of holmium oxide (Ho2O3) ceramics-based magneto-optical materials
Abstract
Faraday effect measurements of holmium oxide (Ho2O3) ceramics-based magneto-optical materials, highly potential material candidates for high-energy laser Faraday isolators, are presented in this paper. Temperature dependence of the Verdet constant of nondoped Ho2O3 ceramics was measured for temperatures 15–305 K at $1.064~\unicode[STIX]{x03BC}\text{m}$ wavelength. The Verdet constant dispersion for wavelengths 0.5–$1~\unicode[STIX]{x03BC}\text{m}$ and $1.064~\unicode[STIX]{x03BC}\text{m}$ was measured for both nondoped Ho2O3 ceramics and Ho2O3 ceramics doped with terbium Tb3+ (0.2 at. %) and cerium Ce3+ (0.1 at. %) ions. The results suggest that the relatively low level of doping of Ho2O3 with these ions has no significant boosting impact on the Faraday effect. Therefore, other compositions of Ho2O3 ceramics-based magneto-optical materials, as well as various doping concentrations, should be further examined.
David Vojna, Ryo Yasuhara, Hiroaki Furuse, Ondrej Slezak, Simon Hutchinson, Antonio Lucianetti, Tomas Mocek, Miroslav Cech. Faraday effect measurements of holmium oxide (Ho2O3) ceramics-based magneto-optical materials[J]. High Power Laser Science and Engineering, 2018, 6(1): 010000e2.