Researchers successfully fabricate magneto-optical ceramics

https://phys.org/news/2024-06-successfully-fabricate-magneto-optical-ceramics.html

"Y2O3 improved optical transmittance suppressing secondary phase (probably due to increased solubility) of terbium aluminum garnet ceramics, key elements of Faraday isolators... solid-state reaction vacuum sintering, then hot isostatic pressing... in-line transmittance 82.9% at 1064 nm (82.2% at 633 nm), optical loss nearly 1 order magnitude lower... reduced Verdet constant reducing paramagnetic ion concentration, thermal conductivity decreased 9.4%... future: further reduce optical loss coefficient"