Spectroscopic and laser properties of Nd3+ in LaSc3(BO3)4 host

Abstract

Spectroscopic and laser properties have been characterized for Nd 3ϩ in LaSc 3 ͑BO 3 ͒ 4 . The Judd-Ofelt analysis has been applied to the measured room temperature absorption spectrum to determine the radiative decay rates and branching ratios of Nd 3ϩ transitions from the 4 F 3/2 metastable state to the 4 I J lower-lying manifolds. The parameters ⍀ 2 , ⍀ 4 , and ⍀ 6 are larger than those reported for Nd 3ϩ in other laser host crystals. The value of ⍀ 4 /⍀ 6 is approximately 3.0 times larger than that of Nd 3ϩ in yttrium-aluminum-garnet ͑YAG͒ and about 1.4 times larger than that of Nd 3ϩ in the ␤ phase of LaSc 3 ͑BO 3 ͒ reported recently. The measured room temperature fluorescence lifetime of the 4 F 3/2 → 4 I 11/2 transition is 150 s, while the Judd-Ofelt analysis predicts a radiative lifetime for the 4 F 3/2 state to be 249 s, resulting in the fluorescence quantum efficiency of 60%. The emission cross sections of the 4 F 3/2 → 4 I 11/2 and 4 F 3/2 → 4 I 13/2 intermanifold transitions have been also determined at room temperature. Finally, these results are compared with those of the standard laser material Nd 3ϩ :YAG.

Optical transitions and absorption intensities of Dy3+ (4f9) in YSGG laser host

“…Many researchers have applied the Judd-Ofelt theoretical analyses to determine the important spectroscopic and laser parameters [11][12][13][14][15][16][17][18][19][20][21][22]. We provide the following short synopsis of the Judd-Ofelt intensity analysis applied to Dy 3+ ions doped in YSGG.…”

Optical-absorption intensities and intermanifold emission cross sections of trivalent erbium ions in calcium fluorophosphate

“…[27][28][29][30][31][32][33][34] We provide the following short synopsis appropriate to the analysis of the Er 3+ transitions in FAP. Many researchers have applied the Judd-Ofelt theoretical analyses to determine the important spectroscopic and laser parameters.…”

Optical absorption and emission properties of Nd3+-doped fluorophosphates glass for broadband fiber amplifier applications

“…It indicates that host materials with excess Nd 3+ doping affect the local field of Nd 3+ ion. Generally the shift to longer wavelengths in glass is possibly related to the high refractive index and its relatively covalent bonding [5,9]. …”