1962/12/01 by Irving H. Malitson · 3 citations
Physics and Astronomy · Engineering · Earth and Planetary Sciences · #Optical and Acousto-Optic Technologies #Optical Polarization and Ellipsometry #Mineralogy and Gemology Studies
paper · doi:10.1364/josa.52.001377
The refractive indices of synthetic sapphire (Al2O3) were measured at selected wavelengths and the values of index range from 1.834 at 0.265 μ in the ultraviolet to 1.586 at 5.58 μ in the infrared. A three-term Sellmeier dispersion equation of the form n2-1=∑iAiλ2λ2-λt2was fitted to the experimental data. Dispersive quantities were computed which estimate the optical performance to be expected from sapphire.