Nd3+→ Cr4+ energy transfer in co-doped Nd,Cr:Y3Al5O12 garnet transparent ceramics

被引：1

作者：

Phillips I.R. ^{[1
]}

Osborne R.A. ^{[1
]}

Cherepy N.J. ^{[1
]}

Drobshoff A.D. ^{[1
]}

Seeley Z.M. ^{[1
]}

Krupke W.F. ^{[1
]}

Payne S.A. ^{[1
]}

机构：

[1] Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, 94550, CA

来源：

Optical Materials: X | 2024年 / 21卷

关键词：

Cr[!sup]4+[!/sup; Energy transfer; Nd[!sup]3+[!/sup; Optical ceramic; Transparent ceramic; YAG;

D O I：

10.1016/j.omx.2024.100292

中图分类号：

学科分类号：

摘要：

Herein, we quantitatively analyze the Nd3+ → Cr4+ energy transfer efficiency in the co-doped transparent ceramic YAG host and determine that it can be maintained at less than a 20 % loss of Nd3+ excited states when the Cr4+ absorption coefficient at 1064 nm is less than 1.0 cm−1. Furthermore, we conclude that the energy transfer mechanism can be fully accounted for on the basis of classic Förster-Dexter theory, as the transfer efficiency deduced from the emission kinetics is consistent with that independently determined from the spectroscopic properties of Cr4+ absorption and Nd3+ emission. Systematic studies of trends for Cr3+ → Cr4+ conversion are reported as a function of the oxygen annealing temperature, initial Cr3+ concentration, and incorporation of divalent (Mg2+ and Ca2+) charge compensators. Lastly, no effect of energy migration among the Nd3+ ions was observed. © 2024 The Authors

引用

共 38 条

[1] Dexter D.L., A theory of sensitized luminescence in solids, J. Chem. Phys., 21, pp. 836-850, (1953)
[2] Forster T., Zwischenmolekulare Energiewanderung und Fluoreszenz, Ann. Phys., 437, 1-2, pp. 55-75, (1948)
[3] Burshtein A.I., Hopping mechanism of energy transfer, Soviet JETP Phys, 35, November, (1972)
[4] Birks J.B., The Theory and Practice of Scintillation Counting, (1964)
[5] Ostroumov V.G., Privis Y.S., Smirnov V.A., Shcherbakov I.A., Sensitizing of Nd3+ luminescence by Cr3+ in gallium garnets, J. Opt. Soc. Am. B, 3, January, pp. 81-94, (1986)
[6] Denisov A.L., Ostroumov V.G., Saidov Z.S., Smirnov I.V.A., Shcherbakov A., Spectral and luminescence properties of Cr3+ and Nd3+ ions in gallium garnet crystals, JOSA B, 3, 1, pp. 95-101, (1986)
[7] Fan T.Y., Huber G., Byer R.L., Mitzscherlich P., Spectroscopy and diode laser-pumped operation of Tm, Ho: YAG, IEEE J. Quant. Electron., 24, June, pp. 924-933, (1988)
[8] Lupei V., Lupei A., Tiseanu C., Georgescu S., Stoicescu C., Nanau P.M., High-resolution optical spectroscopy of YAG:Nd: a test for structural and distribution models, Phys. Rev. B, 51, 1, (1995)
[9] Lupei V., Lupei A., Emission dynamics of the 4F3/2 level of Nd3+ in YAG at low pump intensities, Phys. Rev. B, 61, 12, pp. 8087-8098, (2000)
[10] Zhou S., Lee K.K., Chen Y.C., Monolithic self-Q-switched Cr,Nd:YAG laser, Opt Lett., 18, April, pp. 511-512, (1993)

← 1 2 3 4 →