Nicolas S.; Descroix E.; Joubert M.; Guyot Y.; Laroche M.; Moncorgé R.; Abdulsabirov R.; Naumov A.; Semashko V.; Tkachuk A.; Malinowski M.
(2003)
Gain experiments based on the interconfigurational 4f5d to 4f2 optical transitions in praseodymium-doped fluoride crystals were achieved. The measurements were performed under upconversion pumping of the 4f5d excited ...