# 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: | K. Kato and N. Umemura. Sellmeier equations for GaS and GaSe and their applications to the nonlinear optics in GaSxSe1−x. Opt. Lett. 36, 746-747 (2011) COMMENTS: | Room temperature. Extraordinary ray (e). CONDITIONS: direction: e DATA: - type: formula 4 wavelength_range: 0.633 10.591 coefficients: 5.30813 0.20852 0 0.05251 1 101.479 0 302.223 1