High-refractive-index material retains high transmissivity after annealing at 850°C

Successfully combined with magnetic garnet to yield ten times enhanced performance

Toyohashi University of Technology researchers in collaboration with Massachusetts Institute of Technology (MIT), have developed a new material capable of retaining high transmissivity after thermal treatment at 850°C and successfully applied the material to optical devices. The researchers alternately laminated film of this high-refractive-index material and film of a low-refractive-index material to form a dielectric mirror and then used the mirror for magneto-optical device production, which requires thermal treatment at high temperatures.

Full text: High-refractive-index material retains high transmissivity after annealing at 850°C
TUT website: Press release