RESUMO
Facing the demand of high-power laser development, a high-quality magneto-optical crystal with a high Verdet constant and a high thermal conductivity is needed. Herein, an effective Faraday rotation based on a TbYO3 single crystal with a strong magneto-optical effect, grown by the laser floating zone method, is demonstrated for the first time, to the best of our knowledge. The TbYO3 crystal has the Verdet constant which is 2.16 times (106â rad·m-1 T-1) higher than that of the TGG crystal (49â rad·m-1 T-1) at 880â nm. Additionally, the TbYO3 crystal also has a thermal conductivity of 11.8â W·m-1·K-1 and a laser-induced damage threshold of 1.59â GW·cm-2. These advantages can allow the TbYO3 crystal to be an attractive magneto-optical material.