Hostname: page-component-586b7cd67f-r5fsc Total loading time: 0 Render date: 2024-12-09T01:36:08.106Z Has data issue: false hasContentIssue false

Synthesis and Greatly Enhanced Fluorescence Emission of Transparent Nd-doped Y3ScxAl5−xO12 Ceramics

Published online by Cambridge University Press:  03 March 2011

Tao Feng
Affiliation:
State Key Lab of High Performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050 People’s Republic of China
Jianlin Shi*
Affiliation:
State Key Lab of High Performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050 People’s Republic of China
Jiyang Chen
Affiliation:
State Key Lab of High Performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050 People’s Republic of China
Danyu Jiang
Affiliation:
State Key Lab of High Performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050 People’s Republic of China
*
a) Address all correspondence to this author. e-mail: jlshi@sunm.shchc.ac.cn
Get access

Abstract

Nd-doped Y3ScxAl5−xO12(Nd:YSAG) powder were prepared with a chemical combustion method. The powders were nano-sized and had a pure cubic phase when calcined at 900 °C. Transparent Nd:YSAG ceramics with up to 40% scandium substitution for aluminum were successfully fabricated by sintering the powder compact at 1800 °C under H2 atmosphere. The synthesis process and optical properties were investigated in detail. It was found that the light emission intensity at 1064 nm of the Nd:YSAG with 40% scandium substitution for aluminum can be enhanced by 2–3 times over that of Nd:YAG single crystal when pumped with the same 808-nm diode laser. In addition, the material was found to have prolonged fluorescence lifetime. This highly enhanced light emission intensity is fundamentally important for obtaining higher light output together with suppressed self-heating than Nd:YAG ceramic and single crystals.

Type
Articles
Copyright
Copyright © Materials Research Society 2005

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1Ikesue, A., Furusateo, I. and Kamata, K.: Fabrication of polycrystalline, transparent YAG ceramics by a solid-state reaction method. J. Am. Ceram. Soc. 78, 225 (1995).CrossRefGoogle Scholar
2Ikesue, A. and Kamata, K.: Microstructure and optical properties of hot isostatically pressed Nd:YAG ceramics. J. Am. Ceram. Soc. 79, 1927 (1996).CrossRefGoogle Scholar
3Ikesue, A., Yoshida, K. and Kamata, K.: Transparent Cr4+-doped YAG ceramics for tunable lasers. J. Am. Ceram. Soc. 79, 507 (1996).CrossRefGoogle Scholar
4Lu, J., Murai, T., Takaichi, K., Uematsu, T., Xu, J., Ueda, K., Yagi, H., Yanagitani, T. and Kaminskii, A.A.: 36-W diode-pumped continuous-wave 1319-nm Nd:YAG ceramic laser. Opt. Lett. 27, 1120 (2002).CrossRefGoogle ScholarPubMed
5Lu, J., Murai, T., Takaichi, K., Uematsu, K.T., Misawa, K., Prabhu, M., Xu, J., Ueda, K., Yagi, H., Yanagitani, T. and Kaminiskii, A.A.: 72 W Nd:Y3Al5O12 ceramic laser. Appl. Phys. Lett. 78, 3586 (2001).CrossRefGoogle Scholar
6Lu, J., Prabhu, M., Song, J., Li, C., Xu, J., Ueda, K., Yagi, H., Yanagitani, T. and Kaminskii, A.A.: Highly efficient Nd:Y3Al5O12 ceramic laser. Jpn. J. Appl. Phys. 40, L552 (2001).Google Scholar
7Shoji, I., Kurimura, S., Sato, Y., Ikesue, A. and Yoshida, K.: Optical properties and laser characteristics of highly Nd3+-doped Y3Al5O12 ceramics. Appl. Phys. Lett. 77, 939 (2000).CrossRefGoogle Scholar
8Lupei, V., Lupei, A., Pavel, N. and Ikesue, A.: Laser emission under resonant pump in the emitting level of concentrated Nd:YAG ceramic. Appl. Phys. Lett. 79, 590 (2001).CrossRefGoogle Scholar
9Allik, T.H., Morrison, C.A., Gurber, J.B. and Kokta, M.R.: Crystallography, spectroscopic analysis and lasing properties of Nd:Y3Sc2Al3O12. Phys. Rev. B 41, 21 (1990).CrossRefGoogle Scholar
10Kück, S., Petermann, K., Pohlmann, V. and Huber, G.: Near-infrared emission of Cr4+-doped garnets: Lifetimes, quantum efficiencies and emission cross sections. Phys. Rev. B, Condens. Matter. 51, 17323 (1995).CrossRefGoogle ScholarPubMed
11Kück, S., Petermann, K., Pohlmann, V. and Huber, G.: Tunable room-temerature laser action of Cr4+-doped Y3ScxAl5−xO12. Appl. Phys. B 58, 153 (1994).CrossRefGoogle Scholar
12Sato, Y., Taira, T. and Ikesue, A.: Spectral parameters of Nd3+-ion in the polycrystalline solid-solution composed of Y3Al5O12 and Y3Sc2Al3O12. Jpn. J. Appl. Phys. 42, 5071 (2003).CrossRefGoogle Scholar
13Sato, Y., Saikawa, J., Shoji, I., Taira, T. and Ikesue, A.: Spectroscopic properties and laser operation of Nd: Y3ScAl4O12 polycrystalline gain media, solid-solution of Y3Al5O12 and Y3Sc2Al3O12 ceramics. J. Ceram. Soc. Jpn. Suppl. 112, s313 (2004).Google Scholar
14Sato, Y., Shoji, I. and Taira, T.: The spectroscopic properties and laser characteristics of polycrystalline Nd:Y3ScxAl(5−x )O12 laser media. OSA TOPS 83, 444 (2003).Google Scholar
15Walsh, B.M., Barnes, N.P., Hutcheson, R.L. and Equall, R.W.: Compationally tuned 0.94-μm lasers: A comparative laser materials study and demonstration of 100-mJ Q-Switched lasing at 0.946 and 0.9441 μm. IEEE J. Quantum Eletron. 37, 1203 (2001).CrossRefGoogle Scholar
16Saikawa, J., Sato, Y., Shoji, I., Taira, T. and Ikesue, A.: Passively mode-locked Nd3+-doped Y3ScAl4O12 ceramic laser with a cascaded quadratic nonlinear mirror. OSA TOPS 94, 319 (2004).Google Scholar
17Lupei, V., Lupei, A., Georgescu, S., Taira, T., Sato, Y. and Ikesue, A.: The effect of Nd concentration on the spectroscopic and emission decay properties of highly doped Nd:YAG ceramics. Phys. Rev. B 64, 092102 (2001).CrossRefGoogle Scholar