| Autor: |
Andrade, L.H.C., Ardila, D. Reyes, Barbosa, L.B., Andreeta, J.P., Li, M. Siu, Brenier, A., Guyot, Y., G. Boulon |
| Zdroj: |
The European Physical Journal Applied Physics; January 2005, Vol. 29 Issue: 1 p55-64, 10p |
| Abstrakt: |
Optical spectroscopy studies of Nd$^{3+}$-doped scheelite calcium molybdate (CaMoO$_{4})$ single crystal grown by a floating zone-like technique was performed using Judd-Ofelt analysis, besides luminescence data and lifetime measurements in the visible and near infrared domains. The excited state absorption in cross section units of this material was measured by two different methods for all expected infrared emission. By using calculated intensity parameters $\Omega _{t}$ ($t=2$, 4, 6), it were determined branching ratios, emission cross-sections, and lifetimes for all related transitions. The observed single excited state absorption calibrated in absorption cross-section units was found too small to disturb the laser efficiency in the 10301100 nm spectral range. A comparison of main spectroscopic parameters of this material with those of other Nd$^{3+}$-doped crystals is presented. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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