“…As can be seen from Table 4, 4 G 5/2 -6 H 5/2 and 6 H 7/2 transitions contain magnetic dipole interaction due to the selection rule DJ ¼ 0; 71 [13]. The stimulated emission crosssection (s e ) of 4.32 Â 10 À22 cm 2 estimated for the 4 G 5/2 -6 H 7/2 intense emission band of 1.0 mol% Sm 3+ -doped LBTAF glass is comparable with the other reported values [1,20,29]. Reasonably high values of s e suggest that the present glasses can be used for high gain laser applications [30].…”
Section: Concentration Effect On Fluorescence Spectrasupporting
confidence: 84%
“…These J-O parameters are host dependent and are important for the investigation of glass structure and transition rates of rare-earth ion energy levels. The trend of the intensity parameters in the present LBTAF glass is O 4 4O 6 4O 2 and they are found comparable with other reported values in different hosts[1,[20][21][22][23], presented in…”
supporting
confidence: 92%
“…In the present work the value of the parameters O 2 suggests that the symmetry of the site occupied by Sm 3+ in LBTAF glass is higher than the flurophosphate [20] and tellurite [23] glasses. The values of O 4 and O 6 refer to viscosity of the glass matrix and are affected by the vibronic transitions of the rare-earth ions bound to the ligand atoms [20]. Jacob and Weber [27] reported that the magnitude of spectroscopic quality factor X ¼ O 4 /O 6 is used to characterize the stimulated emission in any host glass matrix.…”
“…As can be seen from Table 4, 4 G 5/2 -6 H 5/2 and 6 H 7/2 transitions contain magnetic dipole interaction due to the selection rule DJ ¼ 0; 71 [13]. The stimulated emission crosssection (s e ) of 4.32 Â 10 À22 cm 2 estimated for the 4 G 5/2 -6 H 7/2 intense emission band of 1.0 mol% Sm 3+ -doped LBTAF glass is comparable with the other reported values [1,20,29]. Reasonably high values of s e suggest that the present glasses can be used for high gain laser applications [30].…”
Section: Concentration Effect On Fluorescence Spectrasupporting
confidence: 84%
“…These J-O parameters are host dependent and are important for the investigation of glass structure and transition rates of rare-earth ion energy levels. The trend of the intensity parameters in the present LBTAF glass is O 4 4O 6 4O 2 and they are found comparable with other reported values in different hosts[1,[20][21][22][23], presented in…”
supporting
confidence: 92%
“…In the present work the value of the parameters O 2 suggests that the symmetry of the site occupied by Sm 3+ in LBTAF glass is higher than the flurophosphate [20] and tellurite [23] glasses. The values of O 4 and O 6 refer to viscosity of the glass matrix and are affected by the vibronic transitions of the rare-earth ions bound to the ligand atoms [20]. Jacob and Weber [27] reported that the magnitude of spectroscopic quality factor X ¼ O 4 /O 6 is used to characterize the stimulated emission in any host glass matrix.…”
“…The values of s(lp) for the 4 G 5/2 emission transitions are in the order of 4 G 5/2 -6 H 7/2 4 6 H 9/2 4 6 H 11/2 4 6 H 5/2 . The stimulated emission cross-section s(lp) of 12.6 Â 10 À 22 cm 2 estimated for the 4 G 5/ 2 -6 H 7/2 intense emission band of 1.0 mol% of Sm 3 þ -doped LCZSFB glass and is compared with the other reported values [1,25,42,45]. Thus, reasonably high values of s(lp) suggest that the present glasses can be used for high gain laser applications.…”
Section: Luminescence Analysis and Radiative Propertiesmentioning
“…Furthermore, it was found that Yb 3+ doped tellurite glasses have significant importance for enhancing the upconversion processes in oxide glasses [17]. Visible fluores- cence and absorption spectra of different Sm 3+ doped oxide glasses have been investigated [18,19]. It is generally recognized that the refractive index and density of many common glasses can be varied by changing the base glass composition [20].…”
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