Refractive index of cubic zirconia stabilized with yttria.

The optical transmission and indices of refraction for the cubic isomorph of ZrO(2) stabilized with 12.0-mol % Y(2)O(3) were measured at various temperatures and for a range of wavelengths from 0.36 to 5.1 microm. Index data to +/-5 x 10(-5) were fitted to a three-term Sellmeier equation. The value of N(D) = 2.15847. The dispersion N(G) - N(B) = 0.06044, while that for N(c) - N(f) = 0.03455. The temperature coefficient of the refractive index between 20 and 130 degrees C varies from 1.6 x 10(-5)/K for 0.36-microm radiation to 0.62 x 10(-5)/K for 1.6-microm radiation.