Luminescence and absorption of Tb3+in mo·Al2O3·B2O3·Tb2O3 glasses

Effect of Alkali Metal Oxide Addition on the Sinterability of MgO–B2O3–Al2O3 Glass–Al2O3 Filler Composites

“…The CTE of MgO–B 2 O 3 –Al 2 O 3 glass is known to be 4–6 × 10 −6 K −1 , 9 which is relatively low. The glass‐forming region in the MgO–B 2 O 3 –Al 2 O 3 system has been reported previously 10–13 . B 2 O 3 is a glass former, Al 2 O 3 is a network former, and MgO is a modifier.…”

Faraday rotation and photoluminescence in heavily Tb3+-doped GeO2-B2O3-Al2O3-Ga2O3 glasses for fiber-integrated magneto-optics

“…These bands are attributed to the intra-configurational parity-forbidden 4f 8 → 4f 8 electronic transitions from the ground state 7 F 6 to the labeled excited states, also indicated in energy level diagram of Tb 3+ (Fig. 2a and 2e)3031323334. The strongest PLE band is the 7 F 6 → 5 L 9 at 350 nm, used in the following as excitation wavelength to record the PL spectra.…”

Luminescence and energy transfer in Dy3+/Tb3+ co-doped CaO–Al2O3–B2O3–RE2O3 glass

“…It is clear that in the ultraviolet light region (310-400 nm), there are five excitation peaks centered at 378, 369, 352, 340, and 317 nm which are attributed to the Tb 3+ transitions of 7 F 6 → ( 5 D 3 , 5 G 6 ), 7 F 6 → 5 L 10 , 7 F 6 → ( 5 L 9 , 5 G 4 ), 7 F 6 → ( 5 G 2 , 5 L 6 ) and 7 F 6 → ( 5 H 7 , 5 D 0,1 ), respectively. Synchronously, in the visible light region (460-510 nm), there is only one excitation peak centered at 485 nm, attributed to the transition of 7 F 6 → 5 D 4 [19]. The emission spectrum of Tb 3+ in glass A (curve b) under 378 nm excitation consists of four emission peaks, locating at 488, 544, 585, and 622 nm, belonging to the Tb 3+ transitions of 5 D 4 → 7 F J (J = 6, 5, 4, 3), respectively [20].…”