New parametrization of spectra of Nd3+ and Sm3+ in glasses

摘要: The semi-empirical realization of the Judd-Ofelt theory f ↔ transitions has proved to be a powerful tool for reproduction majority observed lines in lanthanide doped materials. However, theoretical description some is beyond framework standard approach. In order describe such transitions, which particular are forbidden and hypersensitive, Smentek Wybourne extended by relativistic terms introduced new parametrization scheme f-spectra. This scheme, still one-particle but based on double tensor operators, applied here reproduce spectra Nd 3+ Sm glasses. results numerical calculations compared experimental values those obtained within as well its version odd rank intensity parameters.