Numéro
J. Phys. IV France
Volume 04, Numéro C4, Avril 1994
3rd International Conference Laser M2P
Page(s) C4-385 - C4-388
DOI http://dx.doi.org/10.1051/jp4:1994492
3rd International Conference Laser M2P

J. Phys. IV France 04 (1994) C4-385-C4-388

DOI: 10.1051/jp4:1994492

Cr3+, Nd3+ multisites, pairs and energy transfer processes in laser crystal YAlO3

J.A. MARES1, G. BOULON2, A. BRENIER2, L. LOU2, 3, S.R. ROTMAN4 and H. LURIA4

1  Institute of Physics, Czech Academy of Sciences, Cukrovarnická 10, 162 00 Praha 6, Czech Republic
2  LPCML, URA 442 du CNRS, Université Lyon I, 43 boulevard du 11 Novembre 1918, 69622 Villeurbanne cedex, France
3  University of Science and Technology of China, 230026 Hefei, Anhui, The People's Republic of China
4  Ben Gurion University of the Negev, Department of Electrical and Computer Engineering, 84105 Beer-Sheva, Israel


Abstract
Detailed spectroscopic studies of YAlO3:Nd, YAlO3:Cr and YAlO3:Nd, Cr have shown that these crystals contain up to eight Nd3+ multisites and three Cr3+ ones. [MATH] energy transfer is observed between various multisites and is starting from 2E Cr3+ energy level. Cr3+ donor decay can be adequately fit with the standard Inokuti-Hirayama theory but an assumption of a spatial correlation between Cr3+ donors and Nd3+ acceptors does a much better fit of Nd3+ fluorescence decay.



© EDP Sciences 1994