LANTHANIDE-MAGNESIUM ALUMINOGALLATES, PROMISING LASER MATERIALSReport as inadecuate




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Abstract : The purpose of this work is to increase the power of the lanthanumneodymium-magnesium hexaaluminate -LNA- laser emission. When Ga is substituted for Al the unit cell parameters and consequently the Nd-O distances increase, therefore crystal field experienced by Nd3+ and fluorescence quenching decrease. It is then possible to increase the concentration of the Nd3+ activators ions in the laser crystals. Synthesis, composition domain, optical properties and crystal growth of lanthanum-neodymium aluminogallates with a magnetoplumbite-like structure are described.





Author: D. Lefebvre J. Thery D. Vivien B. Ferrand Y. Grange F. Auzel

Source: https://hal.archives-ouvertes.fr/



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