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• (author = "Lou, L" AND subject = "[PHYS:HIST] Physics/Physics archives")
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author = "Lou, L" > : "[PHYS:HIST] Physics/Physics archives" (x)
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Found 3 documents, displaying page 1 of 1

Anomalous excitation profile and its relationship to multiple dopant sites in (Nd, Cr) YAlO3

Author(s) : Nelson, P. , Lou, L. , Boulon, G. , Garapon, C. , Pedrini, C.
Description : Excitation spectra of (Nd3+, Cr3+)YAlO3 are presented which show anomalous profiles. We demonstrate that these anomalous lineshapes can be explained by a combination of three physical mechanisms: the existence of several inequivalent Nd sites, the existence of significant energy transfer from Cr3+ t...
Repository : HAL - Hyper Article on Line
Language(s) : English

Static and Dynamic luminescence effects of Cr3+-Tm3+ pairs in YAG

Author(s) : Lupei, V. , Lou, L. , Boulon, G. , Lupei, A. , Tiseanu, C.
Description : Luminescence emission of Tm3+ in YAG codoped with Cr3+ under selective (into 2E Cr3+ levels or 3+F3Tm3+ levels) and nonselective (into 4T2 Cr3+) excitation is dominated by three new centers. Based on structural and spectral characteristics, these centers are associated with the three possible pertur...
Repository : HAL - Hyper Article on Line
Language(s) : English

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

Author(s) : Mares, J. , Boulon, G. , Brenier, A. , Lou, L. , Rotman, S. , Luria, H.
Description : 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 fi...
Repository : HAL - Hyper Article on Line
Language(s) : English
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Found 3 documents, displaying page 1 of 1