Wavelength(m)	n	k
# material: SiO2
# source: G. Ghosh. Dispersion-equation coefficients for the refractive index and birefringence of calcite and quartz crystals. Opt. Commun. 163, 95-102 (1999)
# conditions: Extraordinary ray (e). Room temperature.
# upstream: polyanskiy/refractiveindex.info-database@ff11b58 main/SiO2/nk/Ghosh-e.yml
# type: formula 2
# coefficients: 0.28851804 1.09509924 1.02101864e-14 1.15662475 1e-10
# coefficient_unit: m (m^2 for the pole terms)
# note: dispersion fit; k is 0 across the range it covers
# range: 1.9800e-07 - 2.0531e-06 m
# converted: 2026-07-31 (wavelength um -> m)
