Liegard F, Doualan JL, Moncorge R, Bettinelli M. Nd3+? Yb3+ energy transfer in a codoped metaphosphate glass as a model for Yb3+ laser operation around 980 nm. Appl Phys B. 2005;80:985- 991.Liegard, F.; Doualan, J.L.; Moncorge, R.; Bettinelli, M. Nd3+ → Yb3+ energy ...
Nd3+掺杂的NaYF4:Yb,Er/Tm上转换纳米颗粒是一种上转换荧光材料,其中主要包括掺杂离子Nd3+、Yb3+、Er3+(或Tm3+)。这种材料在纳米颗粒尺度下具有特殊的光学性质,通常用于生物医学成像、生物标记、传感器和其他领域。 材料组成:这种上转换纳米颗粒由氟化钠镧系离子掺杂材料组成,其中Nd3+、Yb3+、Er3+或Tm3+是常用的...
论文 > 毕业论文 > 掺Nd3、Yb3以及Er3_Yb3Ba3Ln2BO34LnY、Gd激光晶体的生长、结构、光谱与激光性能分析 打印 转格式 49阅读文档大小:4.93M154页chxbill04上传于2015-03-04格式:PDF
Yb3+YNbO4粉末光谱特性Judd-Ofelt理论采用高温固相法,以50Nb2O5-40Y2O3-2Nd2O3-8Yb2O3的量比在1 300 ℃下制备Nd3+/Yb3+掺杂YNbO4粉末样品.运用Judd-Ofelt理论研究样品光谱特性.由吸收谱中各吸收峰面积计算得到谱线强度参数Ωλ (λ=2,4,6),进而得出理论振子强度及实验振子强度,二者均方根偏差δrms=...
论文 > 毕业论文 > 掺Nd3和Yb3的αBa3_YBO33、Ba3GdBO33和Ba3La2BO34激光晶体的结构、生长、光谱与激光性能的分析 打印 转格式 69阅读文档大小:4.72M129页chxbill02上传于2015-03-04格式:PDF
(Nd3+:4I9/2→4G5/2)的光激发下,得出不同Yb3+掺杂浓度下Nd3+的4F3/2能级和Yb3+的2F5/2能级衰减曲线.通过对比发现在355nm光激发下的上升沿时间要稍短于574 nm光激发下的,表明在355 nm光激发下,Nd3+-Yb3+之间存在下转换过程.(4)建立两步共振能量传递模型,然后对Yb3+的浓度分别为2%和5%的双掺样品的...
In 440–605 nm range, a group of weaker sharp peaks, assigned to the 4f-4f transitions of Nd3+, suggest that Nd3+ and Yb3+can be effectively excited by the ligand absorption rather than by direct intra-4f6 excitation. Under the ligand excitation (λex = 304 nm), Nd1.43Yb0.57-PDC ...
Doping with Yb3+/Nd3+ ions helps achieve an efficient energy transfer from the Cr3+ to Yb3+/Nd3+ ions with excellent thermal stability. NIR pc-LED devices prepared using YSAO:Cr3+,Yb3+ and YSAO:Cr3+,Nd3+ can achieve high NIR output powers of 46.37 and 42.82 mW at 100 mA and ...
The energy transfer phenomenon between Nd3+and Yb3+generates the research inte...