THE ULTRAVIOLET UP-CONVERSION LUMINESCENCE OF NONCRYSTALLINE ErP5O14

This paper reports the observation of the ultraviolet up-conversion lumines-cence phenomenon of noncrystalline ErP₅O₁₄ excited by pulse 532nm laser. The up-conversion mechanism is explained as follows, namely, when noncrystalline ErP₅O₁₄ is excited by 532nm laser, the excited population is mainly deposited in ⁴S_3/2 level because of the strong nonradiative relaxation between ²H_11/2 and ⁴S_3/2 level, then up-converted to (²H²G)_9/2 level by energy transfer between Er³⁺ ions, this produces the ultraviolet luminescence.     

THE ULTRAVIOLET UP-CONVERSION LUMINESCENCE OF NONCRYSTALLINE ErP5O14

This paper reports the observation of the ultraviolet up-conversion lumines-cence phenomenon of noncrystalline ErP₅O₁₄ excited by pulse 532nm laser. The up-conversion mechanism is explained as follows, namely, when noncrystalline ErP₅O₁₄ is excited by 532nm laser, the excited population is mainly deposited in ⁴S_3/2 level because of the strong nonradiative relaxation between ²H_11/2 and ⁴S_3/2 level, then up-converted to (²H²G)_9/2 level by energy transfer between Er³⁺ ions, this produces the ultraviolet luminescence.     

新型非晶态激光工作物质：合成五磷酸镧钕（LNPP）激光材料

合成 ＬＮＰＰ激光玻璃是一种化学计量的非晶态物质，它兼有晶体与玻璃介质的某些特性，是高储能、高增益、高重复率的新型玻璃激光工作物质，它有利于激光器件小型化．本文叙述了ＬＮＰＰ玻璃的主要制备工艺及其基本特性．     

TmP5O14晶体的上转换发光的研究

报道室温下TmP₅O₁₄晶体在脉冲DCM染料激光激发下产生的紫外和深紫色上转换发光现象.测量发现在300—500nm波长范围内主要有两组上转换荧光,一是较强的¹D₂→³H₆,³F₄的360和450nm的双光子荧光,另一是¹I6→³F₄的347nm的三光于荧光,发现了由 关键词：     

非晶La_(1-x)Nd_xP_5O_(14)的拉曼散射研究

本文利用拉曼散射对非晶 La_(1-X)Nd_XP_5O_(14)及其晶化过程进行了研究。拉曼散射表明在非晶La_(1-X)Nd_XP_5O_(14)中仍保留着晶态 La_(1-X)Nd_XP_5O_(14)中具有的 PO_4~(3-)四面体结构单元。非晶La_(1-X)Nd_XP_5O_4在不同温度下晶化,其拉曼谱线的频率不同,这一现象可用应力模型给予解释。     

BLUE-GREEN UP-CONVERSION LUMINESCENCE OF NONCHYSTALLINE HoP5O14 INDUCED BY PULSE DCM DYE LASER

This paper reports the up-conversion luminescence phenomenon in blue-green wave-range of noncrystalline HoP₅O₁₄ induced by pulse DCM dye laser and gives some simple analyses.     

Tm0.1La0.9P5O14玻璃的上转换发光

本文报导了Tm_0.1La_0.9P₅O₁₄玻璃在红色的脉冲染料激光激发下产生的深蓝色和紫外上转换发光现象,对其上转换机理进行了简要的分析.     

ErP_5O_（14）晶体中Er~（3＋）的~4S_（3／2）和~2H_（11／

本文报道了ＥｒＰ５Ｏ１４晶体在脉冲ＤＣＭ染料激光激发下的上转换发光现象，并对其机理进行了简要的分析。     

半导体激光泵浦非晶态La1—xNdxP5O14的激光特性研究

测量了非晶态五磷酸镧钕（Ｌａ１－ｘＮｄｘＰ５Ｏ１４，ＬＮＰＰ）材料在７９０￣１１００ｎｍ波长范围内的吸收光谱，并对其半导体激光泵浦下的激光特性进行了研究。采用平凹腔（Ｒ＝５０ｍｍ，Ｌ＝４０ｍｍ），输出耦合率为Ｔ＝１％，泵浦光斑半径为１８０μｍ时，其斜效率达３４．６％。其近共心腔时的阈值为２１μＪ。     

ErP5O14非晶中Er^3＋离子光谱参数的计数

由测量的ErP_5O_(14)非晶的吸收光谱,计算了Er~(3+)在五磷酸盐非晶中的强度参数Ω_λ,并由此计算了激光能级的振子强度、自发辐射跃迁速率、荧光分支比和积分发射截面。