Effect of yttrium oxide addition on absorption and emission properties of bismuth-doped silicate glasses |
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| Authors: | DAI Nengli WANG Yanshan XU Bing YANG Liiyun LUAN Huaixun LI Jinyan |
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| Affiliation: | [1]Wuhan National Laboratory for Optoelectronics, School of Optoelectronics Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China [2]Department of Ammunition and Missile, Wuhan Mechanical Technology College, Wuhan 430075, China |
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| Abstract: | Y/Bi co-doped silicate glasses were prepared,and the effects of Y 2 O 3 on the absorption and emission properties were investigated by spectrum measurement.It was found that the absorption intensity in visible region decreases with increase of Y 3+ concentration in(70-x)SiO 2 xY 2 O 3-30CaO-1.5Bi 2 O 3(x=0 mol.%,1 mol.%,3 mol.%,5 mol.%,7 mol.%) glasses.The emissions centered at 410,630,1200 and 1290 nm were observed under 280,470,514 and 808 nm excitation,respectively.The emission intensity had the similar change tendency in the visible and near infrared region.We also discussed the actual role of Y 3+ ions playing in the visible and near infrared emissions of the silicate glasses. |
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| Keywords: | bismuth yttrium broadband near infrared fluorescence silicate glasses rare earths |
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