# 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: | J. Monin and G.-A. Boutry. Optical and photoelectric properties of alkali metals. Phys. Rev. B 9, 1309-1327 (1974) COMMENTS: | 195 K (-78.15 °C) DATA: - type: tabulated nk data: | 0.2650 0.777 0.081 0.2804 0.726 0.084 0.3340 0.484 0.130 0.3660 0.268 0.242 0.4060 0.136 0.540 0.4358 0.117 0.730 0.4600 0.110 0.855 0.4916 0.107 1.005 0.5100 0.104 1.083 0.5460 0.095 1.239 0.5780 0.089 1.361 0.6200 0.080 1.525 CONDITIONS: temperature: 195