Structural and optical properties of samarium doped lithium lead borate glasses

Structural, photoluminescence, and optical characteristics of a Sm3+‐doped lead borate–strontium–tungsten glass system: Evaluation of Judd–Ofelt intensity parameters and radiative properties

“…In contrast $$$ \Delta \mathrm{E} $$$ decreased with the increase in samarium concentration. Higher values for Urbach energy indicated that the material was more likely to develop defects [22, 30]. For our prepared samples, the values obtained were relatively small compared with previous work [13, 26, 39], and sample BPbSrSm 3.0 possessed the least defects.…”

“…The deconvolution peaks in the band 1200–1500 cm −1 were due to the stretching modes of BO 3 units [21–23, 30]. In the region from 750 to 1200 cm −1 , BO 4 units were observed.…”

“…When incorporated into a suitable host glass network, samarium provides good luminescence in the visible region [7, 9]. The emission of the Sm 3+ ions is not influenced by the high phonon energy, which is why borate glass are widely used in doping with samarium [10, 12, 13, 23–30]. Samarium is considered a promising material for use in optical fibres, specifically in optical amplifiers [22].…”

“…When incorporated into a suitable host glass network, samarium provides good luminescence in the visible region [7,9]. The emission of the Sm 3+ ions is not influenced by the high phonon energy, which is why borate glass are widely used in doping with samarium [10,12,13,[23][24][25][26][27][28][29][30].…”

Investigation of the spectral characteristics of Sm3+ ions in lead borosilicate glass for photonic applications

“…Due to the partially filled f-f levels, Sm 3+ ions are desirable for research because they can produce an intense luminescence in the reddish orange wavelength. Moreover, due to their extensive range of energy levels, longer meta-stable lifetimes, high photoluminescence intensity level, larger stimulated emission cross-section, and quantum efficiency, Sm 3+ ion-doped systems have been recommended as being especially favourable for active mediums [29][30][31][32][33][34].…”