Preparation and Study on the Properties of Low expansion Rare-earth -Doped Phosphate Glass with Exce

来源 :第八届中国功能玻璃学术研讨会暨新型光电子材料国际论坛 | 被引量 : 0次 | 上传用户:mai2621329
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
  Phosphate glass doped with rare earth ions has advantages like large emission cross-section,high gain coefficient and high quantum efficiency.But it has disadvantages including loose glass structure,large coefficient of thermal expansion,low soft point,bad chemical stability and high contain of OHˉ will shorten the fluorescence lifetime and reduce the quantum efficiency.Thermal stability and chemical stability can be improved by introducing F2、Al2O3 and Y2O3 into P2O5-Al2O3-MgO glass system;OHˉ group can be removed out by the gas atmosphere produced during the chemical reaction.Through these works,the thermal expansion coefficient of phosphate glass was reduced to 40.5×10-7/℃,spectroscopic properties could be optimized,and the appliance fields could be broadened too.
其他文献
硫系玻璃光纤具有优异的中红外透光性、高的光学非线性、良好的热稳定性和化学稳定性,在中红外光传输、分子传感、非线性光学等领域备受关注.最近,我们在硫系玻璃光纤与光纤传像束的制备及应用方面取得了较显著进展.(1)制备了一系列高机械性能低损耗中红外传输硫系玻璃光纤,在激光传输和大气传感等方面得到了实际应用;(2)设计和制备了小芯径阶跃折射率硫系玻璃光纤,以其为非线性介质,采用飞秒激光抽运,获得了覆盖2-
The float process is widely used,since it has excellent quality and productivity,and accompany with low cost,variable production sizing and convenient online processing.Approximately 90%of the world p
会议
The Stark splitting properties of Yb3+atroom temperature in phosphate laser glass werestudied.To enlarge the Stark splitting level,SiO2 as structure formers was added to the simple composition of 60P2
A single-mode laser output of 0.75 W near 2 μm was obtained with a slope efficiency of 28.7%with respect to the absorbed pump power when a self-developed double-cladding Tm3+-doped tellurium germanate
β-NaYF4是目前公认的最有效的上转换基质,但是其量子效率依然很低,对β-NaYF4进行包覆,是一种有效提高其量子效率的方法。[1,2]目前,关于3-NaYF4∶Er3+/Yb3+核壳结构的报道有很多,但是对于上转换过程中涉及到的相关能级的布居变化以及布居变化对上转换增强的影响却未见报道。本文中合成了三明治结构β-NaYF4∶2%Er3+/20%Yb3+@β-NaYF4纳米颗粒。三明治结构与核壳
Porphyrins modified with N-isopropylacrylamide(NIPAM)-poly 2-Hydroxyethyl methacrylate(PHEMA)form a novel class of water-soluble temperature-targeted porphyrin photosensitizers(PSs)was carried out by
随着光纤激光器输出功率不断提高,高功率激光光纤的制备在工艺上要求更大尺寸的芯棒和对光纤预制棒稀土离子的掺杂浓度及掺杂均匀性有较高的要求。我们采用改进化学气相沉积工艺结合稀土螯合物掺杂工艺制备了掺镱光纤预制棒,并且对光纤预制棒的物理性能和材料性能进行了分析研究。实验结果表明,该预制棒稀土离子掺杂浓度较高,并且具有较好的均匀性;稀土镱的特征吸收区在850nm-l050nm,主峰为977nm,荧光中心波
Nd/Nb co-substituted B3.15Nd0.85Ti3-xNbxO 12(BNTNx,x=0.01,0.03,0.05 and 0.07)thin films were grown on PT/Ti/SiO2/Si(100)substrates by chemical solution deposition.The effects of Nb content on the micr
Compared to commercial silica fiber,the multi-component glass fiber possesses lower phonon energy,wider transmission edge in mid-infrared region,and higher rare-earth ions solubility for high gain per
会议
White light-emitting diodes(W-LEDs)have attracted persistent attention in recent decades due to their magnificent advantages [1].During the development of W-LEDs,one of the major concern problems is t