Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7920901 | Journal of Physics and Chemistry of Solids | 2015 | 4 Pages |
Abstract
Luminescence decays of metastable Nd3+:4F3/2 level were measured and studied in wide of 10-300Â K temperature range and compared with the radiative lifetimes derived from standard Judd-Ofelt theory. Nearly resonant cross-relaxation was found to non-radiatively depopulate the metastable level already in 10Â K, whereas above 50Â K increased reabsorption of radiation and thermalization of higher Stark component of the 4F3/2 level occur, which resulted in the Boltzmann population of this metastable Nd3+ level and anomalous increase of luminescence decays with temperature increment.
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Authors
A. Bednarkiewicz, P.J. DereÅ, K. LemaÅski,