cauchy
0.4765 0.83
J. Rheims, J. Köser and T. Wriedt. Refractive-index measurements in the near-IR using an Abbe refractometer, Meas. Sci. Technol. 8, 601-605 (1997) doi:10.1088/0957-0233/8/6/003
1.35265 0.00306 0.00002
