Influence of modifier oxide on spectroscopic and thermoluminescence characteristics of Sm3+ ion in antimony borate glass system

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

“…The stimulated emission crosssection is one of the important parameters used to identify the potential laser transitions in a laser active medium. The emission cross-section of 6.26 × 10 −22 cm 2 obtained for 4 G 5/2 → 6 H 7/2 transition in LTTSm10 glass is found to be very close to the values of 6.92 × 10 −22 cm 2 for calibo [14]; 6.30 × 10 −22 cm 2 for lead fluoroborate [16]; 5.74 × 10 −22 cm 2 for L5FBS [33] and 5.73 × 10 −22 cm 2 for Mo-Sb 2 O 3 -B 2 O 3 [37] glasses. The high gain bandwidths of 10.63 × 10 −28 cm 3 and optical gain of 8.51 × 10 −25 cm 2 s −1 obtained for 4 G 5/2 → 6 H 7/2 transition indicate that the LTTSm10 glass could be useful for the development of optical devices.…”

Sm3+-doped (Ca,Mg,Zr)GGG crystal: A potential reddish-orange laser crystal

“…The highest value of peak emission cross-section amounts to 4.28 × 10 −22 cm 2 , which is at 613 nm and assigned to 4 G 5/2 → 6 H 7/2 transition. The product of the lifetime of 4 G 5/2 and the emission cross-section at 613 nm, inversely proportional to the laser threshold, is 1.06 × 10 −21 cm 2 ms, which can be comparable with that of Sm 3+ in LiNbO 3 crystal (1.088 × 10 −21 cm 2 ms at 603 nm) and CaO-Sb 2 O 3 -B 2 O 3 glass (1.275 × 10 −21 cm 2 ms at 601 nm) [7,5]. The large emission cross-section of 4 G 5/2 → 6 H 7/2 transition is an attractive feature for low-threshold and high gain laser applications, which indicates that this crystal is a potential reddish-orange laser crystal.…”

“…Nevertheless, among this group of ions, Sm 3+ -doped optical materials are studied much less than others such as Nd 3+ , Yb 3+ , and Er 3+ [1][2][3][4][5][6][7][8]. Due to the large scale demand and great advance of laser diode of about 405 nm which is used in many fields such as lighting, optical storage and also can be used to directly pump Sm 3+ -activated laser medium, the situation maybe change in the near future.…”

Influence of tungsten on the emission features of Nd3+, Sm3+ and Eu3+ ions in ZnF2–WO3–TeO2 glasses

“…Earlier studies on optical absorption, fluorescence and lifetime measurements of Sm 3+ ions in oxyfluoroborate and oxide glasses have indicated the quenching of the fluorescence of 4 G 5/2 level [24,25]; this is attributed to quadrupole-quadrupole interaction among the samarium ions. Similarly, a number of earlier studies on spectroscopic properties of Sm 3+ ions in different glass matrices have revealed that the fluorescence yield of this rare earth ion is strongly dependent on its environment inside the glass network [26][27][28][29][30][31].…”