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作者:A. M. Tkachuk , S. E. Ivanova ...
来源:[J].Optics and Spectroscopy(IF 0.559), 2017, Vol.122 (5), pp.735-748
摘要:Optical transitions in KPb2Cl5:Tb3+ crystals are studied experimentally and theoretically. The absorption cross-section spectra are plotted and the oscillator strengths of transitions from the ground terbium state to excited multiplets are de...
作者:A. M. Tkachuk , S. E. Ivanova ...
来源:[J].Optics and Spectroscopy(IF 0.559), 2015, Vol.118 (3), pp.393-411
摘要:Abstract(#br)Energy transfer processes between praseodymium dopant ions, which are responsible for the luminescence self-quenching in crystals Na0.4Y0.6F2.2:Pr3+ (NYF:Pr3+; Pr = 0.4–9%), have been investigated experiment...
作者:A. M. Tkachuk , I. K. Razumova ...
来源:[J].Optics and Spectroscopy(IF 0.559), 2001, Vol.90 (1), pp.78-88
摘要:Abstract(#br)Microparameters of migration and self-quenching of luminescence from the ( 3 P 0 , 1 I 6 ) levels of Tm 3+ ions are calculated and the luminescence decay from the 3 H 4 , 1 G 4 , and 1 D 2 levels are analyzed in the concentration series of LiY 1− x Tm x F 4 ( x ...
作者:A. M. Tkachuk , I. K. Razumova ...
来源:[J].Optics and Spectroscopy(IF 0.559), 2002, Vol.92 (1), pp.67-82
摘要:Abstract(#br)Formation of the inverse population of working levels of 3-µm laser transition in LiY 1− x Er x F 4 ( x =0.003–1) crystals under CW InGaAs laser-diode pumping (0.967–0.982 µm) was investigated. Dependences of population of the 4 I 11/2 and 4 I 13/2 levels o...
作者:A. M. Tkachuk , S. É. Ivanova ...
来源:[J].Optics and Spectroscopy(IF 0.559), 2002, Vol.92 (1), pp.83-94
摘要:Abstract(#br)Optical spectra, radiative and nonradiative transition intensities, and luminescence kinetics of neodymium-doped potassium-lead double chloride crystals Nd 3+ :KPb 2 Cl 5 , (Nd 3+ :KPC) are investigated. Crystals were grown by the Stockbarger-Bridgman technique. Expe...
作者:A. M. Tkachuk , S. É. Ivanova ...
来源:[J].Optics and Spectroscopy(IF 0.559), 2003, Vol.95 (5), pp.722-740
摘要:Abstract(#br)Optical spectra, intensities of radiative and nonradiative transitions, and luminescence kinetics in erbium-doped potassium-lead double chloride crystals KPb 2 Cl 5 :Er 3+ s(KPC:Er 3+ ) were investigated. The crystals were grown by the Bridgman-Stockbarger method. Th...
作者:A. M. Tkachuk , S. É. Ivanova ...
来源:[J].Optics and Spectroscopy(IF 0.559), 2004, Vol.97 (2), pp.251-269
摘要:Abstract(#br)Na 0.4 Y 0.6 F 2.2 :Er 3+ (NYF:Er) crystals with an erbium concentration as high as 100 at. % (Na 0.4 Er 0.6 F 2.2 ) were grown by the Bridgman-Stockbarger method. The optical spectra were investigated at low (6 K) and room temperatures. It is shown that the abs...
作者:A. M. Tkachuk , S. É. Ivanova ...
来源:[J].Optics and Spectroscopy(IF 0.559), 2005, Vol.99 (6), pp.932-949
摘要:Abstract(#br)Na 0.4 Y 0.6 F 2.2 :Er 3+ (NYF:Er 3+ ) crystals with an Er concentration up to 15% were grown by the Bridgman-Stockbarger method. The luminescence kinetics was investigated for a series of NYF:Er 3+ crystals (0.5–15% Er), as well as the concentration and tempera...
作者:A. M. Tkachuk , S. E. Ivanova ...
来源:[J].Optics and Spectroscopy(IF 0.559), 2011, Vol.111 (6), pp.919-935
摘要:Abstract(#br)We have grown crystals Na 0.4 Y 0.6 F 2.2 :Ho 3+ (NYF:Ho 3+ ) by the Bridgman-Stockbarger method. The optical spectra and luminescence kinetics of NYF:Ho 3+ crystals have been studied. Based on the analysis of low-temperature absorption spectra, we determine the...

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