Photoluminescence properties of Sm3+ in LBTAF glasses

Absorption and emission spectral studies of Sm3+-doped lead tungstate tellurite glasses

“…The reasonably small ı rms of ±0.30 × 10 −6 between the measured and calculated oscillator strengths indicates that the intensity parameters obtained in the present work are more reliable. The intensity parameters evaluated for LTTSm10 glass are comparable to those reported for different Sm 3+ -doped host matrices [20,[27][28][29] as given in Table 1. In order to minimize the ı rms , the oscillator strength corresponding to the 6 H 5/2 → 4 L 15/2 (394 nm) transition is not considered in determining the intensity parameters.…”

“…The oscillator strengths of the absorption bands are determined using our previous work [24]. The experimental oscillator strengths of the absorption bands of LTTSm10 glass are relatively much higher than those reported for Sm 3+ ion in CdO-Al 2 O 3 [15], LBTAF [20], LiLTB [25] and N4BS [26] glasses as presented in Table 1. The reasonably small ı rms of ±0.30 × 10 −6 between the measured and calculated oscillator strengths indicates that the intensity parameters obtained in the present work are more reliable.…”

“…LTTSm10 [This work] 0.54 0.42 LBTAF [20] 0.55 0.50 P2O5 [23] 0.35 0.37 N4BS [26] 0.54 0.43 PKFBASm [32] 0.56 0.42 L5FBS [33] 0.55 0.47 Lithiumfluoroborate [31] 0.46 0.47 ZnCdF [35] 0.38 0.47 ZBLALi [36] 0.37 0.42 J-O theory [21,22] have been used to evaluate the stimulated emission cross-sections ( e ), gain bandwidths ( e × P ) and optical gain ( e × R ) parameters for the 4 G 5/2 → 6 H J (J = 5/2, 7/2, 9/2 and 11/2) transition of LTTSm10 glasses. The stimulated emission crosssection is one of the important parameters used to identify the potential laser transitions in a laser active medium.…”

“…It is also well known that the intensities of emission bands of Sm 3+ ion in glasses depend on its concentration and glass composition [20]. In order to obtain optimum emission characteristics for device applications, the characteristic features of host as well as concentration dependent studies of Sm 3+ are essential.…”

Composition dependent structural and optical properties of Sm3+-doped sodium borate and sodium fluoroborate glasses

“…Among the RE ions Sm 3 + ions have stimulated extensive interests due to their potential application for high-density optical memory devices [4][5][6]. The excited 4 G 5/2 level of Sm 3 + ions emits in the visible region which exhibits relatively high quantum efficiency and shows different quenching mechanisms which make Sm 3 + ions as an interesting case to analyze the energy transfer process [7][8][9][10][11][12][13][14][15][16][17].…”