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Radiative Lifetime Measurements of Even-Parity Levels of Singly Ionized Erbium |
| XU Huai-Liang2,3;JIANG Hong-Mei2;LIU Qian2;JIANG Zhan-Kui1,2;S. Svanberg3 |
| 1Department of Physics, Yantai University, Yantai 264005
2Department of Physics, Jilin University, Changchun 130023
Department of Physics, Lund Institute of Technology, PO Box 118, S-221 00 Lund, Sweden |
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| Cite this article: |
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XU Huai-Liang, JIANG Hong-Mei, LIU Qian et al 2004 Chin. Phys. Lett. 21 1720-1722 |
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Abstract Radiative lifetime measurements were performed by time-resolved laser-induced fluorescence (LIF) technique for eight even-parity levels of the astrophysically important ion Er+ over the energy range from 33753 to 55317 cm-1. Free erbium ions were generated by a laser-induced plasma. A narrow bandwidth UV laser pulse (1ns) was employed to populate selectively the short-lived upper levels, and the lifetime value were evaluated from the time-resolved fluorescence signals. The lifetimes reported fall in the range of 3-35ns with the experimental accuracy 5-8%.
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| Keywords:
32.70.Cs
42.62.Fi
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Published: 01 September 2004
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| PACS: |
32.70.Cs
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(Oscillator strengths, lifetimes, transition moments)
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42.62.Fi
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(Laser spectroscopy)
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