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Laser radiation in the 2 µm spectral range is useful for different applications: medicine, scientific research, environmental gas detection. Single crystals of tetragonal scheelitelike Tm3+-doped double tungstates and molibdates are of interest as active media for building 2 µm tunable lasers.
Transparent ceramic materials doped with rare earth ions are of considerable interest in modern laser physics. Interest in laser ceramics is caused by the fact that it is characterized by large aperture and the possibility of obtaining laser medium with a gradient of concentration of activator. Mechanical properties and thermal conductivity of ceramics is not worse than similar properties of single...
The details of Tm 3+ -doped NaGd(WO 4 ) 2 single-crystal growth are discussed, the results of precise investigations of its structural and spectroscopic characteristics, as well as the analysis of cross-relaxation process of Tm 3+ ions ( 3 H 4 → 3 F 4 , 3 H 6 → 3 F 4 ) in this crystal are presented. Based...
The results of optical, spectroscopic and luminescent properties of Tm3+-doped NaLaGd(MoO4)2 and NaLa(MoO4)2 crystals are displayed. Based on the Judd-Ofelt theory, three intensity parameters were obtained. Gain cross-section for laser transition 3F4rarr3H6 of Tm3+-ions was obtained.
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