Optical Properties of Nd3+ Doped Phosphate Glasses at 4F3/2 -> 4I11/2 Hypersensitive Transitions

Abstract

The lasing transition 4 F 3/2  4 I 11/2 for Nd 3+ doped phosphate glass centered around 1.05 -1.07m is referred as hypersensitive transition. The radiative properties such as effective line width ( eff ), radiative transition probability (A R ), branching ratio ( R ), radiative lifetime ( R ), quantum efficiency () and stimulated emission cross section have been obtained for several phosphate and fluorophosphate glass contained Nd 3+ . The experimental and calculated oscillator strength were used to analysis Judd-Ofelt parameters ( 2 ,  4 and  6 ) also to predict the quality of factor . The phosphate glass material with the approximately 69P 2 O5-15Na 2 O-15K 2 O-1Nd 2 O 3 composition at 4 F 3/2  4 I 11/2 transition is suitable for laser medium. The enhanced radiative transition probability as well as branching ratio and stimulated emission cross section in this glass are 3694 s -1 , 52% and 8.67 x10 -20 cm 2 respectively. As in commercial laser, the magnitudes of the emission cross section in this study achieved in the range 4.0-5.0 x 10 -20 cm 2 .

Optical and Luminescence Properties of Trivalent Rare Earth Ion (Sm3+, Dy3+, and Eu3+) doped Glass for Laser Gain Medium Development : A Review

“…The band absorptions of PKSAEu10 glass are 362 nm, 376 nm, 382 nm, 393 nm, 400 nm, 415 nm, 464 nm, 526 nm and 533 nm. These wavelengths are corresponded by transitions of 7 F 0 →( 5 D 4 , 5 G 3 , 5 G 2 , 5 L 6 ), 7 F 1 →( 5 L 6 , 5 D 3 ), 7 F 0 →( 5 D 2 , 5 D 1 ) and 7 F 1 → 5 D 1 respectively. The hypersensitive transition is produced by 7 F 0 → 5 L 6 transition centred at 393 nm.…”

“…Furthermore, Ln 3+ doped glasses posses wider absorption and emission region than crystal. Ln 3+ doped glasses have been investigated by [5][6][7]. The glass sample is developed by melt and quenching technique that is easy preparation and low-cost production.…”

Type II NdWO3/g-C3N4n–n Heterojunction for Visible-Light-Driven Photocatalyst: Exploration of Charge Transfer in Nd3+ Ion-Doped WO3/g-C3N4 Composite

“…WCN composite is observed at lower emission intensity, compared to the counter parts. NWO and NWCN the emission bands appears at 421, 443, 485 nm (blue shift) and 515 nm (green shift) assigned to the 4 I 9/2 → 2 P 3/2 , 2 K 15/2 and 4 I 9/2 → 4 G 5/2 , 4 G 7/2 and 443 nm are corresponds to transitions from VB to CB, respectively 37,38. NWCN composite exhibit lowest recombination indicates that higher generation of electron−hole pairs, compared to other catalysts.…”