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- Xiao-jun Wang
- Department of Physics and Astronomy, University of Georgia, Athens, Georgia 30602
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- Shihua Huang
- Department of Physics and Astronomy, University of Georgia, Athens, Georgia 30602
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- Lizhu Lu
- Department of Physics and Astronomy, University of Georgia, Athens, Georgia 30602
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- William M. Yen
- Department of Physics and Astronomy, University of Georgia, Athens, Georgia 30602
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- A. M. Srivastava
- General Electric Research and Development, 1 Research Circle, Niskayuna, New York 12309
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- A. A. Setlur
- General Electric Research and Development, 1 Research Circle, Niskayuna, New York 12309
書誌事項
- 公開日
- 2001-10-01
- DOI
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- 10.1063/1.1407296
- 公開者
- AIP Publishing
この論文をさがす
説明
<jats:p>We demonstrated a method for measuring the quantum efficiency of deep UV emission using the two-step excitation and the difference of the integrated spectral intensities in Pr3+-doped CaAl4O7 and SrAl4O7 crystals. The quantum efficiencies of the emission from the lowest 4f5d state in the two systems have been estimated to be less than 10% at room temperature. The effect of excited-state absorption of the lowest 4f5d state is analyzed for the quantum efficiency measurement. The actual efficiency may be higher when this effect is taken into account, especially under the condition of strong excitation.</jats:p>
収録刊行物
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- Applied Physics Letters
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Applied Physics Letters 79 (14), 2160-2162, 2001-10-01
AIP Publishing