Open AccessOptical properties and energy transfer processes in (Tm3+, Nd3+) doped tungstate fluorophosphate glass
Author(s) -
Marconi J. S. Brandão,
Cid B. de Araújo,
Gäel Poirier,
Younès Messaddeq,
M. Poulain
Publication year - 2006
Publication title -
journal of applied physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.699
H-Index - 319
eISSN - 1089-7550
pISSN - 0021-8979
DOI - 10.1063/1.2200737
Subject(s) - thulium , tungstate , ion , luminescence , excitation , doping , neodymium , phosphate glass , analytical chemistry (journal) , fluorescence , absorption spectroscopy , atomic physics , chemistry , absorption (acoustics) , radiative transfer , materials science , optics , inorganic chemistry , laser , optoelectronics , physics , composite material , organic chemistry , quantum mechanics , chromatography
International audienceWe investigate the linear optical properties and energy transfer processes in tungstate fluorophosphate glass doped with thulium (Tm3+) and neodymium (Nd3+) ions. The linear absorption spectra from 370 to 3000 nm were obtained. Transitions probabilities, radiative lifetimes, and transition branching ratios were determined using the Judd-Ofelt [Phys. Rev. 127, 750 (1962); J. Chem. Phys. 37, 511 (1962) ] theory. Frequency up-conversion to the blue region and fluorescence in the infrared were observed upon pulsed excitation in the range of 630-700 nm. The excitation spectra of the luminescence were obtained to understand the origin of the signals. The temporal decay of the fluorescence was measured for different concentrations of the doping ions. Energy transfer rates among the Tm3+ and Nd3+ ions were also determined
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