| Nd3+-Yb3+-Ho3+掺杂四氟化锆玻璃的Ho3+上转换特性研究 |
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| 引用本文： | Shaukat S.F,董亚明,Hussain M,Farooq R,李光远.Nd3+-Yb3+-Ho3+掺杂四氟化锆玻璃的Ho3+上转换特性研究[J].上海大学学报(英文版),2002,6(1). |
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| 作者姓名： | Shaukat S.F 董亚明 Hussain M Farooq R 李光远 |
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| 作者单位： | Shaukat S.F. 1，DONG Ya Ming 1，Hussain M. 2，Farooq R. 1，LI Guang Yuan 1 1.Department of Physics，East China University of Science and Technology，Shanghai 200237，China 2.Department of Physics，Government College，S/Town，R.Pindi，Pakistan |
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| 摘 要： | 1 Ｉｎｔｒｏｄｕｃｔｉｏｎ Ｉｎｒｅｃｅｎｔｙｅａｒｓ ,ｈｉｇｈ ｐｏｗｅｒｌａｓｅｒｄｉｏｄｅｓｈａｖｅｂｅｅｎｅｍｐｌｏｙｅｄａｓｐｕｍｐｉｎｇｓｏｕｒｃｅｓｗｉｔｈａｖｉｅｗｔｏｄｅｖｅｌｏｐｃｏｍｐａｃｔｕｐ ｃｏｎｖｅｒｓｉｏｎｖｉｓｉｂｌｅ ｌａｓｅｒｓｙｓｔｅｍｓ .Ｔｈｅｆｒｅ ｑｕｅｎｃｙｃｏｎｖｅｒｓｉｏｎｏｆｉｎｆｒａｒｅｄｌｉｇｈｔｔｏｖｉｓｉｂｌｅｌｉｇｈｔｈａｓｂｅｅｎｅｘｔｅｎｓｉｖｅｌｙｉｎｖｅｓｔｉｇａｔｅｄｆｏｒｒａｒｅ ｅａｒｔｈｄｏｐｅｄｃｒｙｓｔａｌｓａｎｄｇ…
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Sensitized Up-Conversion Luminescence of Ho3+ in Nd3+-Yb3+-Ho3+ Co-doped ZrF4- Based Glass |
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| Shaukat S.F,Hussain M,Farooq R.Sensitized Up-Conversion Luminescence of Ho3+ in Nd3+-Yb3+-Ho3+ Co-doped ZrF4- Based Glass[J].Journal of Shanghai University(English Edition),2002,6(1). |
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| Authors: | Shaukat SF Hussain M Farooq R |
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| Abstract: | Up-conversion processes for the blue, green and red emissions were found two-photon phenomenon, known as the cooperative phenomenon. This phenomenon was assisted by Nd3+ →Yb3+ → Ho3+ energy transfer. The strong green emission due to the Ho3+ : (5F4 , 5S2) → 5I8 transitions was observed in Nd3+ - Ho3+ co-doped ZrF4-based fluoride glasses under 800 nm excitation. As an attempt to enhance Ho3+ up-conversion luminescences in the Nd3+ - Ho3+ co-doped ZrF4-based glasses, Yb3+ ions were added to the glasses. As a result it was found that, in 800 nm excitation of 60ZrF4. 30BaF2. (8-x)LaF3. 1NdF3. xYbF3. 1HoF3 glasses (x=0 to 7), sensitized up-conversion luminescences are observed at around 490 nm (blue), 545 nm (green), and 650 nm (red), which correspond to the Ho3+ : 5F3 → 5I8 , ( 5F4 , 5S2) →5I8 and 5F5 → 5I8 transitions respectively. The intensities of the green and red emissions in a 3 mol % YbF3 -containing glass were about 50 times stronger than those glasses without YbF3. This is based on sensitization due to Yb3+ ions. In particular, the green emission was extremely strong and the Nd3+-Yb3+ -Ho3+co-doped ZrF4-based glasses have a high possibility of realizing a green up-conversion laser glass. In this paper the up-conversion mechanism in the glasses is discussed in detail. |
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| Keywords: | heavy metal fluoride glass luminescence up conversion |
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