# this file is part of refractiveindex.info database # refractiveindex.info database is in the public domain # copyright and related rights waived via CC0 1.0 REFERENCES: | D. F. Edwards and R. H. White, "Beryllium Oxide," in E. D. Palik (ed.), Handbook of Optical Constants of Solids II, Academic Press, Orlando, 1991, pp. 805-814. COMMENTS: | Extraordinary ray (e). Room temperature CONDITIONS: direction: e DATA: - type: formula 1 wavelength_range: 0.44 7.0 coefficients: 0 1.96939 0.08590 1.67389 10.4797