In:
Journal of Applied Physics, AIP Publishing, Vol. 90, No. 10 ( 2001-11-15), p. 4997-5001
Abstract:
Spectroscopic and laser properties have been characterized for Nd3+ in LaSc3(BO3)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 Nd3+ transitions from the F3/24 metastable state to the IJ4 lower-lying manifolds. The parameters Ω2, Ω4, and Ω6 are larger than those reported for Nd3+ in other laser host crystals. The value of Ω4/Ω6 is approximately 3.0 times larger than that of Nd3+ in yttrium–aluminum–garnet (YAG) and about 1.4 times larger than that of Nd3+ in the β phase of LaSc3(BO3) reported recently. The measured room temperature fluorescence lifetime of the F3/24→I11/24 transition is 150 μs, while the Judd–Ofelt analysis predicts a radiative lifetime for the F3/24 state to be 249 μs, resulting in the fluorescence quantum efficiency of 60%. The emission cross sections of the F3/24→I11/24 and F3/24→I13/24 intermanifold transitions have been also determined at room temperature. Finally, these results are compared with those of the standard laser material Nd3+:YAG.
Type of Medium:
Online Resource
ISSN:
0021-8979
,
1089-7550
Language:
English
Publisher:
AIP Publishing
Publication Date:
2001
detail.hit.zdb_id:
220641-9
detail.hit.zdb_id:
3112-4
detail.hit.zdb_id:
1476463-5
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