Open AccessMagneto-optic pyrochlore ceramics of Tb2Hf2O7 for Faraday rotator
Author(s) -
Ryo Yasuhara,
Akio Ikesue
Publication year - 2019
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.27.007485
Subject(s) - verdet constant , faraday effect , terbium , materials science , optical isolator , ceramic , optics , gallium , transmittance , faraday rotator , faraday cage , wavelength , laser , optoelectronics , magnetic field , physics , luminescence , metallurgy , quantum mechanics
In the first demonstration of the Faraday effect in an optical-grade Tb 2 Hf 2 O 7 (THO) ceramic, its optical properties and the Verdet constant's wavelength dependence were evaluated at room temperature. The transmittance loss of this material was equally low as for the terbium gallium garnet, a well-known magneto-optic material. The Verdet constant at 1064 nm was 50.4 rad/Tm, which was 1.4 times greater than that of the terbium gallium garnet. THO ceramics show great potential for use in Faraday devices in near-infrared laser applications.