【摘 要】
：
The spectral properties of Pr_xLa_(1-x)P_5O_(14)crystals were studied andthe oscillator strength parameters and transition probabilities were obtained.It is fo
【机 构】
：
Changchun Institute of Applied Chemistry,Academia Sinica
论文部分内容阅读
The spectral properties of Pr_xLa_(1-x)P_5O_(14)crystals were studied andthe oscillator strength parameters and transition probabilities were obtained.It is found that there are two matchable energy level pais,i.e.~3P_0-~1D_2 and ~3H_4-~3H_6,~1D_2-~1G_4 and ~3H_4-~3F_4.They can produce strong cross relaxation,so the statictransition process will be changed and made cσmplex by these nonradiative
The spectral properties of Pr_xLa_ (1-x) P_5O_ (14) crystals were studied and the oscillator strength parameters and transition probabilities were obtained. It is found that there are two matchable energy level pais, ie ~ 3P_0 ~ 1D_2 and ~ 3H_4 ~ 3H_6, ~ 1D_2- ~ 1G_4 and ~ 3H_4- ~ 3F_4.They can produce strong cross relaxation, so the static transition process will be changed and made cσmplex by these nonradiative
其他文献
Loser of 3um produced by YEAG is within the absorption band of hydro-xyl,so it can be strongly absorbed by biologocal tissues.Acting as a source oflaser surger
为了适应我国四化的要求,党政干部既要熟悉党和国家的有关科学技术的方针政策,也要懂得一些科学技术的基本知识,本书特地精选了有关内容汇编成册,可作为党政干部的一本科技
本刊从本期起将陆续公布三块“学术榜”,即我国40所大学(分20所综合大学和20所工科大学),我国30个省、市、自治区和中国科学院30所直属研究所的科学计量指标排序,也就是发表
目的探讨急性胆源性胰腺炎(ABP)发病机制、手术时机和术式的选择。方法回顾性总结双流县第二人民医院2001年1月-2008年12月所诊治的76例急性胆源性胰腺炎的临床资料。结果非
中国科学技术期刊编辑学会成立及第一次会员代表大会于1987年3月4日～6日在北京召开。会议代表来自全国各省市、学术团体、出版社、高等院校、军队等共180人。国家科委副主任
Doping NaF crystals with carious impurities can remarkably affect thelasing efficiency and efficiently improve the stability of F_2~+ centers in them.Both the(
凭借对互联网的深入理解,京北方成为银行业嫁接互联网的好帮手费振勇认为,他们离互联网一点都不远。这话听上去有些不着边际。费振勇创立的京北方,最早的业务主要集中在为金
航天部第十三情报网“7131”技术情报交流会于1987年10月30日至11月5日在湖南大庸市召开。这次会议由航天部二院208所负责主办。共有30个单位的54名代表参加。二院208所唐文
如今,孩子顺利升入小学二年级,回想起一年级刚开学的那段时间,对我和孩子都是“炼狱”一般的考验,但还好我用坚定不移的信念,心不软,耳根不软,手不软,终于让孩子平稳度过了幼
作为胶质瘤的起始细胞,胶质瘤干细胞与正常神经干细胞在无限增殖、自我更新、多方向分化等方面具有很多相似性。骨形态发生蛋白(BMP)可通过作用于其IB型受体(BMPRIB)促进胶质