Absorption and emission spectral studies of Sm3+ and Dy3+ ions in PbOPbF2 glasses

Luminescence properties of Dy3+ ions in a variety of borate and fluoroborate glasses containing lithium, zinc, and lead

“…The emission spectra corresponding to 4 F 9/2 → 6 H J (J = 7/2, 9/2, 11/2, 13/2, and 15/2) transitions of Dy 3+ ions in the title glasses are very similar and are comparable to those obtained for other reported Dy 3+ :glasses [2][3][4][5][6][7][8][9][10][11][12][13][14], except small changes in intensity and shifts in emission bands. Fig.…”

“…Although some spectroscopic studies have been performed on this ion [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16], a detailed analysis of the fluorescence decay curves versus glass composition and concentration has not, to our knowledge, been established/understood yet. In the present work, the fluorescence decay curves of the 4 F 9/2 level and yellow-to-blue intensity ratios have been determined in a variety of Dy 3+ doped borate and fluoroborate glasses and are compared with those reported for other Dy 3+ :glasses [2][3][4][5][6][7][8][9][10][11][12][13][14] to understand/estimate the property-composition relation and in turn to identify better glass composition.…”

“…In the present work, the fluorescence decay curves of the 4 F 9/2 level and yellow-to-blue intensity ratios have been determined in a variety of Dy 3+ doped borate and fluoroborate glasses and are compared with those reported for other Dy 3+ :glasses [2][3][4][5][6][7][8][9][10][11][12][13][14] to understand/estimate the property-composition relation and in turn to identify better glass composition.…”

Excitability of high-energy ultraviolet radiation for Dy3+ in antimony phosphate glasses

“…7. The radiative transitions belonging to the 4f 9 electronic configurations can be analyzed by the JuddOfelt (J-O) theory based on the absorption of Dy 3+ [61][62][63][64][65][66][67][68][69]. J-O intensity parameters Ω t (t = 2, 4, 6) for Dy 3+ in ZASP glasses were calculated to be 5.74 ×10 −20 cm 2 , 1.47 × 10 −20 cm 2 and 1.12 × 10 −20 cm 2 , respectively, and the rootmean-square deviation between the experimental and calculated oscillator strengths was assessed to be 2.3 × 10 −7 , indicating that the fitting process is reliable.…”

Frequency Upconversion in Rare Earth Ions

“…In the solid host materials with higher phonon frequencies, it is not easy to get efficient infrared and visible emission even in the Er 3+ , Nd 3+ , Ho 3+ , Tm 3+ , etc. The effect of host materials on the optical properties of rare earth ions introduced as doping along with compositional changes of modifiers have been studied by different workers [Babu et al, 2000;Nageno et al, 1994;Rai, 2010;Sai Sudha et al, 1996;Lin et al, 2002;Hussain et al, 2000;Nachimuthu et al, 1997;. They concluded that due to their improved radiative transition probabilities, these glasses are promising materials for different technological applications.…”