Photoluminescent properties of di(8-hydroxyquinolato) zinc impregnated in nanoporous glass

Photoluminescent properties of a metal-organic complex, di(8-hydroxyquinolato) zinc, impregnated in nanoporous glass were investigated. In comparison with those in the normal organic fluorescent material, the emission band of the impregnated organic phosphor became wider. Blueshift (14 nm) was observed due to π*→n emission transition. The excitation band of the embedded organic phosphor had a larger blueshift and was divided into several sub-bands. The intensity in the short wavelength end of the embedded organic fluorescent material became much stronger.     

14N16O的LMR光谱测量及其相关同位素分子14N17O和14N18O的光谱分析

采用内脏式ＣＯ激光磁共振（ＬＭＲ）技术测量了~(14)Ｎ~(16)Ｏ的Ｘ~Ｘ Ｚｅｅｍａｎ跃迁谱，并对其进行了标识、在Ｈｕｎｄ情形（ａ）双原子分子结构模型的基础上，采 用先进的同位素分子参数标度函数，对已发表的~(14)Ｎ~mＯ（ｍ＝ １６， １７， １８）光谱实验数据及 测量的 ＬＭＲ光谱数据进行了统一的分析计算，得到~14Ｎ~16Ｏ分子基态的精确结构参数， 其精度比前人的结果提高了 １－ ２个数量级，并由此推导出~(14)Ｎ~(17)Ｏ及~(14)Ｎ~(18)Ｏ等同位素分 子的结构参数．     

Photoluminescent properties of di(8-hydroxyquinolato) zinc impregnated in nanoporous glass

Photoluminescent properties of a metal-organic complex, di(8-hydroxyquinolato) zinc, impregnated in nanoporous glass were investigated. In comparison with those in the normal organic fluorescent material,the emission band of the impregnated organic phosphor became wider. Blueshift (14 nm) was observed due to π* → n emission transition. The excitation band of the embedded organic phosphor had a larger blueshift and was divided into several sub-bands. The intensity in the short wavelength end of the embedded organic fluorescent material became much stronger.     

激光磁共振方法测量C0激光器的频率稳定度

对于频率不能连续调谐的CO激光器,采用一种新的激光频率稳定度的测量方法是以分子的激光磁共振谱线为基准,通过测量分子的激光磁共振谱线线宽及其变化,然后用阿仑方差进行数据处理,即得出了一系列时畴下的CO激光频率稳定度,并用计算机对取样时间从0.1秒-1000秒的频率稳定度进行幂函数拟合,获得了频畴的CO激光频率稳定度的表达式。     

氮气交流放电光谱强度和电压及气压的关系

利用浓度调制光谱技术,测量了玻璃管中放电频率20 kHz时N2的介质阻挡放电光谱.实验记录了N2的C3∏u-Bb∏g357.7nm和B2∑ u-X2 g391.4 nm的跃迁谱线光谱强度随小同电压和气体压强变化规律.实验数据显示,保持气体压强p=130 Pa不变,在电压较低时,光谱强度随电压增长较快,在电压较高时,光谱强度增长较慢;保持放电电压U=6.4 kV不变,光谱强度随气压增长逐渐变小.根据电子和分子碰撞激发函数和电离函数,建立光强随放电参数变化的物理理论模型和公式,并对实验数据进行数学拟合,拟合曲线与实验结果符合较好,相关系数R>0.9.进一步明确了等离子体发射光谱强度随不同电压和气体压强变化的机理.     

CO三重带系d3Δ-a3Π(4,0)和(5,0)带激光光谱研究

光外差磁旋转浓度调制激光光谱技术属于一种高灵敏度的吸收光谱测量方法 ,可以用于瞬态分子和激发态分子光谱的检测。采用这种技术分别在 16 4 0 0～ 16 6 5 0cm-1和 174 5 0～ 1775 0cm-1波段内直接观测到CO三重带系d3 Δ←a3 Π(4,0 ) (5 ,0 )振转吸收光谱。这种跃迁的上态d3 Δ1(v =4 ) ,d3 Δ2 (v =4 ) ,d3 Δ1(v =5 )分别与A1Π(v =0 ) ,D1Δ(v =0 )和A1Π(v =1)态存在微扰相互作用。通过对所测量到的 CO三重带系 (4,0 ) (5 ,0 )振转谱带作了包含微扰相互作用在内的分析 ,获得了上态d3 Δ(v =4 ,5 )的精确的分子转动光谱常数。     

Crystal Structure of Borophosphate with 6_1 Screw Axis Helices

1 INTRODUCTION Most materials with nonlinear optical pro- perties and electro-optical applications are either borates or phosphates. LBO(LiB3O5), KTP(KtiO- PO4), BBO(b-BaB2O4) and KDP(KH2PO4) are well- known commercially and extensively used for different optical elements. In recent years, the compounds combined both borate and phosphate groups have been synthesized and structurally characterized with quite different anionic partial structures. In particular, the use of hydrot…     

光谱的精密仿真技术及NO的高分辨LMR谱的仿真研究

LMR(Laser Magnetic Resonance)光谱技术采用磁场扫描及磁场调制获得顺磁分子吸收谱线,其谱线具有Voigt线型及各不相同的磁场线宽.本文考虑线型理论模型和实验条件,提出了一种实现LMR谱精密仿真的方法,并设计了相应仿真计算程序.对¹⁵N¹⁶O的X²Π_3/2v=1←0,Q₂(2.5)在激光频率为1842.8160cm^-1处的塞曼跃迁谱进行了仿真,得到了理想的仿真效果.该方法可作为复杂光谱分析标识的有效辅助工具.     

15N16O的激光磁共振谱与同位素分子15N17O和15N18O的光谱分析

采用内腔式饱和吸收技术获得 Ｌａｍ ｂ 凹陷,使 Ｃ Ｏ 激光磁共振谱仪的灵敏度及分辨率大大提高．利用该技术对自然丰度下１５ Ｎ １６ Ｏ 的 Ｘ２Π（ υ＝ １） ← Ｘ２Π（ υ＝ ０） 塞曼跃迁进行测量,实现了包括Λ双分裂在内的各种精细结构的谱分辨．结合已发表的１５ Ｎ Ｏ 同位素分子光谱实验数据进行分析计算,拟合得到迄今最完备、最精确的各相关同位素分子１５ Ｎ ｍ Ｏ（ ｍ ＝ １６ —１８）的结构参数．     

CO三重带系d^3Δ-α^3∏（4，0）和（5，0）带激光光谱研究

光外差磁旋转浓度调制激光光谱技术属于一种高灵敏度的吸收光谱测量方法，可以用于瞬态分子和激发态分子光谱的检测。采用这种技术分别在16400～16650cm^-1和17450～17750cm^-1波段内直接观测到CO三重带系d^3△←α^3∏(4，0)(5，0)振转吸收光谱。这种跃迁的上态d^3△1(v=4)，d^3△2(v=4)，d^3△1(v=5)分别与A^1∏(v=0)，D^1△(v=0)和A^1∏（v=1)态存在微扰相互作用。通过对所测量到的CO三重带系(4，0)(5，0)振转谱带作了包含微扰相互作用在内的分析，获得了上态d^3△(v=4，5)的精确的分子转动光谱常数。