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Energy Transfer Between Two Sites in Nd3+:KLiYF5

Published online by Cambridge University Press:  15 February 2011

H. Weidner ,
P. L. Summers ,
R. E. Peale  and
B. H. T. Chai
H. Weidner
Affiliation:
University of Central Florida, Department of Physics, Orlando, FL 32816
P. L. Summers
Affiliation:
University of Central Florida, Department of Physics, Orlando, FL 32816
R. E. Peale
Affiliation:
University of Central Florida, Department of Physics, Orlando, FL 32816
B. H. T. Chai
Affiliation:
University of Central Florida, Center for Research and Education in Optics and Lasers, Orlando, FL 32826
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Abstract

High resolution spectroscopy of Nd3+ in Potassium Lithium Yttrium Fluoride (KLiYF5 ) at ≤80 K reveals two crystal-field sites which are equally populated independent of concentration. Site selective excitation of photoluminescence distinguishes each site's contribution to the spectra. The analysis of integrated line intensities reveals a bidirectional energy transfer between Nd3+ ions in different sites. A rapid increase in transfer rate with increasing Nd concentration is explained only if non-radiative transfer via exchange interaction contributes strongly to the effect. The observed relative decrease with increasing concentration of those emission lines which overlap strongly with opposite-site absorption lines implies that radiative transfer is also important. The energy transfer strongly depends on temperature (2 K – 80 K) which indicates the participation of phonons.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 329: Symposium R – New Materials for Advanced Solid State Lasers , 1993 , 135
Copyright
Copyright © Materials Research Society 1994

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References

1. Kaminskii, A. A. and Khaidukov, N. M., Phys. Stat. Sol. (a) 129, K65 (1992).Google Scholar
2. Nicholls, J. F. H., Zhang, X. X., Loutts, G. D., Henderson, B., Bass, M., and Chai, B. H. T., in Growth, Characterization, and Applications of Laser Host and Non-linear Crystals II, edited by Chai, B. H. T. (SPIE Proc. 13, 1993) p. 1863.Google Scholar
3. Weidner, H., Summers, P. L., Peale, R. E., and Chai, B. H. T., accepted J. Appl. Phys.Google Scholar
4. Goryunov, A. V., Popov, A. I., and Khajdukov, N. M., Mat. Res. Bull. 27, 213 (1992).CrossRefGoogle Scholar
5. Merkle, L. D. and Powell, R. C., Phys. Rev. B 20, 75 (1979).Google Scholar
6. Zokai, M., Powell, R. C., Imbusch, G. F., and Bartolo, B. Di, J. Appl. Phys. 50, 5930 (1979).Google Scholar
7. Tyminski, J. K., Lawson, C. M., and Powell, R. C., J. Chem. Phys. 77, 4318 (1982).Google Scholar
8. Dexter, D. L., J. Chem. Phys. 21, 836 (1953).Google Scholar
9. Boulon, G., in Energy Transfer Processes in Condensed Matter, edited by Bartolo, B. Di (Plenum, New York, 1984), p. 603.Google Scholar
10. Henderson, B. and Imbusch, G. F., Optical Spectroscopy of Inorganic Solids, (Clarendon, Oxford, 1989), p. 445.Google Scholar
11. Bartolo, B. Di, in Energy Transfer Processes in Condensed Matter, edited by Bartolo, B. Di (Plenum, New York, 1984), p. 103.Google Scholar