We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Luminescence Self-Quenching in Tm[sup 3+] : YLF Crystals: II. The Luminescence Decay and Macrorates of Energy Transfer.
- Authors
Tkachuk, A. M.; Razumova, I. K.; Perlin, E. Yu.; Joubert, M.-F.; Moncorge, R.
- Abstract
Microparameters of migration and self-quenching of luminescence from the (³P[sub 0], ¹I[sub 6]) levels of Tm[sup 3+] ions are calculated and the luminescence decay from the ³H[sub 4], ¹G[sub 4], and ¹D[sub 2] levels are analyzed in the concentration series of LiY[sub 1-x]Tm[sub x]F[sub 4] (x = 0.5 - 10 at. %) crystals upon weak selective excitation. It is shown that the luminescence decay of a thulium ion concentration higher than 0.5 at. % cannot be described by the energy transfer that takes into account only the dipole-dipole interaction. The comparison of experimental kinetic curves with theoretical curves calculated within the framework of the known energy transfer models showed that multipole-multipole interaction is responsible for the self-quenching of the thulium levels. Contributions of higher multipole interactions to the self-quenching are estimated. The decay of luminescence from the ³H[sub 4], ¹G[sub 4], and ¹D[sub 2] levels of Tm[sup 3+]:YLF crystals with different concentrations of thulium ions is described analytically.
- Subjects
THULIUM; CRYSTAL optics; LUMINESCENCE; ENERGY transfer
- Publication
Optics & Spectroscopy, 2001, Vol 90, Issue 1, p78
- ISSN
0030-400X
- Publication type
Article
- DOI
10.1134/1.1343549