Blue up-conversion emission in Yb3+ sensitized YAG:Pr3+

Autor:	M.F. Joubert, Bernard Jacquier, Michal Malinowski, Z. Frukacz
Rok vydání:	1997
Předmět:	Chemistry Energy transfer Biophysics Analytical chemistry Resonance General Chemistry Laser pumping Condensed Matter Physics Biochemistry Fluorescence Atomic and Molecular Physics and Optics Fluorescence intensity Up conversion Absorption (electromagnetic radiation) Multiplet
Zdroj:	Journal of Luminescence. 75:333-339
ISSN:	0022-2313
DOI:	10.1016/s0022-2313(97)00128-2
Popis:	One-color infra-red laser pumping of YAG:Pr3+ + Yb3+ crystals results in a strong up-converted blue fluorescence from the excited3P0 multiplet. Up-conversion fluorescence intensity increases as the square of incident pump power indicating two-ion process. The first step is the efficient nonradiative energy transfer from2F5/2 level of Yb3+ to the1G4 level of Pr3+. The second step is an excited-state absorption (ESA) from the1G4 multiplet. The resonance between the first-step pumping process and the second-step ESA is strongly temperature dependent.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::346b9db6c51ad1f7e156da661e6f9387 https://doi.org/10.1016/s0022-2313(97)00128-2 Zobrazit plný text záznamu Full Text from ScienceDirect