| Ag NPs induced near-infrared emission enhancement of Er3+/Tm3+ codoped tellurite glass |
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| 作者姓名： | 夏礼章 张雨 沈欣杰 黄波 周亚训 |
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| 作者单位： | College of Information Science and Engineering |
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| 基金项目： | This work has been supported by the National Natural Science Foundation of China(No.61875095);the Natural Science Foundation of Ningbo City(No.2016A610061);the K.C.Wong Magna Fund in Ningbo University。 |
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| 摘 要： | Ag nanoparticles(NPs) were introduced into Er3+/Tm3+ codoped tellurite glasses prepared using melt-quenching and heat-treated techniques. The glass samples were characterized by the differential scanning calorimeter(DSC), X-ray diffraction(XRD), transmission electron microscopy(TEM) and photoluminescence to reveal the Ag NPs induced broadband near-infrared band emission enhancement of Er3+/Tm3+ ions. The studied glasses possessed good thermal stability with△T larger than 137 ℃. For glass sample heat-treated at 360 ℃ for 6 h, the nucleated Ag NPs in near-spherical shape with an average diameter about 6.5 nm dispersed in the glass matrix. Under the excitation of 808 nm laser diode(LD), the broadband near-infrared fluorescence emission extending from 1 350 nm to 1 620 nm, owing to the combined contributions from the 3H4→3F4 transition of Tm3+ at 1.47 μm band and the 4I13/2→4I15/2 transition of Er3+ at 1.53 μm band, improved significantly with the introduction of Ag NPs, which is mainly attributed to the increased local electric field. The present results indicate that Er3+/Tm3+/Ag NPs codoped tellurite glass with good thermal stability is a promising glass material for broadband fiber amplifiers of WDM transmission systems.
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| 关 键 词： | glass GLASSES EXCITATION |
| 收稿时间： | 2020/1/18 0:00:00 |
| 修稿时间： | 2020/3/11 0:00:00 |
Ag NPs induced near-infrared emission enhancement of Er3+/Tm3+ codoped tellurite glass |
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| XIA Li-zhang,ZHANG Yu,SHEN Xin-jie,HUANG Bo and and ZHOU Ya-xun.Ag NPs induced near-infrared emission enhancement of Er3+/Tm3+ codoped tellurite glass[J].Opto-electronics Letters,2021,17(2):80-84. |
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| Authors: | XIA Li-zhang ZHANG Yu SHEN Xin-jie HUANG Bo and and ZHOU Ya-xun |
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| Affiliation: | College of Information Science and Engineering, Ningbo University, Ningbo 315211, China1,College of Information Science and Engineering, Ningbo University, Ningbo 315211, China1,College of Information Science and Engineering, Ningbo University, Ningbo 315211, China1,College of Information Science and Engineering, Ningbo University, Ningbo 315211, China1 and College of Information Science and Engineering, Ningbo University, Ningbo 315211, China1 |
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