第一章总论(之二)电磁辐射与材料的相互作用
1 第一章 总论 (之二) 电磁辐射与材料的相互 作用
Nature Materials 2012:11:58Whereas significant achievements havebeen made in visible persistent phosphors(长余),the research and developmentof persistent phosphors in the NiR region(700-2,500 nm,近红外区arelacking,eventhough there are growing demands for(示踪驹)inapplications as taggants(监测)and asnight-vision surveillanceoptical probes in bioimaging?
Nature Materials 2012;11:58 2 Whereas significant achievements have been made in visible persistent phosphors (长余辉) , the research and development of persistent phosphors in the NIR region (700-2,500 nm,近红外区) are lacking, even though there are growing demands for applications as taggants (示踪物) in night-vision surveillance (监测) and as optical probes in bioimaging
Un5min10s5min5min1min5minDirectsunlight400nm495nm590nm5minExcitedinairExcitedinsaltwater1h5h24h120hNature Materialsg2012;11:58240hZn3Ga2Ge2010: 0.5%Cr3+h3360h
3 Nature Materials 2012;11:58 Zn3Ga2Ge2O10: 0.5%Cr3+
③2T(te2)④4T,(t2e)64T,/2EElectrontrapsAACr3+
4
主要内容概述第一节辐射的吸收与发射、辐射的散射、光电离*第二节各类特征谱基础原子光谱、分子光谱#、光电子能谱#、俄歇电子能谱、核磁共振*第三节X射线的产生及其与物质的相互作用X射线的产生#、X射线与物质的相互作用、X射线的衰减、X射线的防护5
5 主要内容 第一节 概述 辐射的吸收与发射、辐射的散射、光电离 *第二节 各类特征谱基础 原子光谱、分子光谱# 、光电子能谱# 、俄歇电 子能谱 、核磁共振 *第三节 X射线的产生及其与物质的相互作用 X射线的产生# 、X射线与物质的相互作用、X 射线的衰减、X射线的防护