在这种新型光存储器中,基于电磁感应透明的光脉冲存储和角度复用技术具有重要意义。 2.研究内容和方法 本文将研究Pr3+.Y2SiO5晶体中基于电磁感应透明的光脉冲存储和角度复用技术。 首先,从光存储的基本原理出发,探究晶体中电磁感应透明的物理机制,分析其在光存储中的应用。然后,对Pr3+.Y2SiO5晶体进行实验研究,探究...
2 SiO 5 中的反斯托克斯荧光谱 及其对基态Stark分裂能级的确定 张衍亮,孙真荣,李玉琼,丁良恩,王祖赓 光谱学与波谱学教育部重点实验室,华东师范大学物理系,上海20002 摘要掺杂在晶体Y 2 Si 5 (YS )中的Pr 3+ ,运用脉冲激光激发 3 H 4" l D 2 跃迁,粒子通过非辐射能量转 移从能级 l D 2 转移到能级...
In aY2SiO5:Pr3+crystal, this is due to the thermally activated transitions for thePr3+ion between nonequivalent positions in the crystal lattice. 展开 关键词: Photon echoes Absorption spectra Crystal lattices Electric dipole moments Optical absorption ...
Wang et al., modulated fluorescence (FL) lifetime through dressing effect between Stark levels of Pr3+: YPO4 nanocrystals in different crystal phases [9]. Li et al., reported how the dressing effect can be controlled through resonant excitation to enhance nonlinear gain in Pr3+: Y2SiO5 in...
Spectral hole burning and holography in an Y2SiO5:Pr3+ crystal Holographic detection of spectral holes is demonstrated in a crystalline host material with signal-to-noise ratios of up to 10 4 . Hole burning occurs in t... K Holliday,M Croci,E Vauthey,... - 《Phys.rev.b》 被引量: ...
Cates proposed the utilization of Y2SiO5:Pr3+ phosphor to create antimicrobial self-cleaning surfaces capable of emitting UVC light under monochromatic or polychromatic excitation [26], [27]. Furthermore, Wu reported UVC UC luminescence in LiYF4:Pr3+ under solar excitation, suggesting its potential...
采用溶胶凝胶法制备镨掺杂TiO2复合光催化剂,用透射电镜(TEM)、X射线衍射(XRD)、紫外可见光分度计(UV-DRS)等对样品进行表征.以甲基橙为模拟污染物,在紫外光照射下考察样品的光催化活性.分析了镨的掺杂量、煅烧温度对光催化效率的影响.研究表明,镨的引入降低了TiO2晶型转变温度,有助于电子和空穴分离,从...
Y Guan,T Tsuboi,Y Huang,... - 《Journal of Applied Physics》 被引量: 1发表: 2014年 Transparent Ni2+-doped ZnO-Al2O3-SiO2 system glass-ceramics with broadband infrared luminescence We report transparent Ni ...
采用固相合成法制备了LiY0.99-xCe0.01PrxSiO4(x=0～5%)系列化合物,采用X射线粉末衍射、紫外-可见漫反射光谱、光致发光光谱、X射线激发发射光谱以及光致发光衰减曲线对其系列化合物的物相、发光性能进行了表征。结果表明:在煅烧温度为1100℃所制备的样品均为纯LiYSiO4相;Ce^3+的吸收峰位于325和364nm。Pr^3+、Ce...
Scintillation properties of Y2SiO5:Pr crystals1 We report on the scintillation properties of Y2SiO5 (YSO) single crystals doped with different concentrations of Pr3+. Dipole allowed transitions from the ... P Dorenbos,M Marsman,CWEV Eijk,... - 《Radiation Effects》 被引量: 43发表: 1995年...