Optics Letters · 2010 · 19 citations · 6 references
Natural SciencesMaterials SciencePhysicsCondensed Matter PhysicsOptical MaterialsSpectroscopyLaser Host MaterialsLuminescent MaterialsOptical Properties Of MaterialsOptical Properties Of SolidsOptical SpectroscopyRare-earth-doped MaterialsQuantum EfficiencyRare-earth-doped CrystalsRare-earth-doped Luminescent MaterialsSpectroscopic CharacterizationSpectroscopic Characterization Of Laser HostsSpectroscopic ConstantsTemperature Dependence Of Absorption SpectraTemperature Dependence Of Laser Performance
Optical spectra and luminescence decay curves were measured for thulium-doped YVO(4), GdVO(4), and LuVO(4) single crystals as a function of temperature in the 300-670 K temperature region. In spite of structural similarity, the three systems studied display significantly different transition intensities and nonradiative relaxation rates. It was found, in particular, that the peak value of the pump band absorption intensity diminishes by about 30% for Tm:YVO(4) and Tm:GdVO(4), and the effective emission cross section for the laser transition of Tm(3+) diminishes by a factor of 2 roughly when temperature increases from 300 to 500 K. An unusually small quantum efficiency of the upper laser level in Tm:LuVO(4) has been derived from the analysis of luminescence decay curves.
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Efficient 194-μm Tm^3+ laser in YVO_4 host
Hirohisa Saito, S. Chaddha, R. S. F. Chang et al. · Optics Letters · 1992 · 68 citations
Performance of a Tm3+:GdVO4 microchip laser at 1.9 μm
Chr. Wyss, W. Lüthy, H. P. Weber et al. · Optics Communications · 1998 · 37 citations
Diode-end-pumped Tm:GdVO4 laser operating at 1818 and 1915 nm
M. J. Daniel Esser, E. H. Bernhardi, C. Bollig et al. · Applied Physics B · 2009 · 25 citations