Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1496800 | Optical Materials | 2009 | 7 Pages |
Abstract
We present excited state absorption (ESA) spectroscopy of Nd3+-activated fluoroaluminate glass. The ESA spectra were measured in the range from 550 to 1800Â nm by the continuous-wave pump-probe technique. Judd-Ofelt (JO) formalism was employed to interpret the results. The obtained intensity parameters and linewidths were used to simulate the ESA spectra, which were successfully compared with the experimental data. The calculated ESA spectra were also used to precisely assign previously observed upconverted emissions and to predict additional ones, which were experimentally verified. The presented upconverted luminescence spectrum contains several anti-Stokes emission lines at 355Â nm, 381Â nm, 412Â nm and 448Â nm, and is in good agreement with the calculations.
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Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
D. Piatkowski, K. Wisniewski, Cz. Koepke, M. Naftaly,