CO+彗尾带系（A2Π-X2Σ+）（2,3）带速度调制激光光谱研究

利用差分速度调制分子郭激光光谱技术,首次测量了ＣＯ＾＋彗尾带系（Ａ＾２П－Ｘ＾２Σ＾＋）（２,３）弱带转动吸收光谱,通过对测量谱线的标识,获得了两态的分子常数,其中下态ｖ″的常数未见有文献报导,在锁相放大器１ｓ积分时间下,实验系统的吸收测量灵敏度实测为１．５６×１０＾－６。     

分子振转光谱的计算机辅助标识

介绍一种计算机辅助分子光谱振转标识的交互式软件,它的主要功能是根据二次逐差原理自动将谱线分组,挑取各个支带；然后用图解的方式,以谱线频率和强度为坐标轴,将选取的各组谱线按不同的颜色或线形绘成柱状图,清晰地显示出隐藏在复杂分子光谱中的振转结构；而且,同时可以作出Loomis-Wood图辅助光谱振转标识。将本软件应用到由三氯化磷和氦气放电生成的包含多种分子的复杂光谱中,取得了满意的结果,有效地辅助了光谱的振转分析。该软件适用于对称陀螺分子和轻微不对称陀螺分子和线形分子的光谱分析。     

塞曼调制磁旋转光谱技术在磁场测量中的应用

首次提出采用塞曼调制-磁旋转光谱技术制成NO₂分子磁场计的可能性.并对不同进场下,NO₂分子塞曼调制磁旋转光谱16846.20cm^-1谱线强度进行了测量,提出了这种新型磁强计的设计原理,并阐述了该磁强计的特点.     

胶束电动毛细管色谱法同时测定血清中苯巴比妥、苯妥英钠和卡马西平

建立了血清中苯巴比妥、苯妥英钠和卡马西平的胶束电动毛细管色谱(MEKC)分析法。方法以巴比妥钠为内标物,10 mmol/L磷酸氢二钠溶液-30 mmol/L十二烷基硫酸钠(胶束相)-15%甲醇为缓冲液(pH=8.50),恒定电压18 kV,检测波长210 nm。本法测定苯巴比妥和苯妥英钠两种药物的线性范围为2.5~80μg/mL(r≥0.9990),检出限为0.5μg/mL;测定卡马西平的线性范围为1~32μg/mL(r=0.9999),检出限为1.0μg/mL。方法快速、简便、结果准确,适合于临床应用。     

N2交流辉光放电等离子体喷束的光谱测量及特性研究

建立了一套交流放电产生N2等离子体喷束的装置,该装置可对氮气进行高达15 kV连续放电.采用浓度调制光谱技术对放电辉光光谱进行探测,并对实验中放电电流和光谱信号的关系进行了讨论.沿着束流的轴向探测了不同位置N2等离子体的发射光谱,发现其激发态振动温度随着束流的下降先降低继而升高,并根据实验条件分析了其变化规律和产生机理.研究了束流中N2 /N2比例变化过程,发现随着束流向下两者比例逐渐升高,并结合实验装置进行讨论.     

Analysis of （1, 2） （1, 3） and （2, 3） Bands in the c^3Ⅱu- b^3Ⅱg System of P2

We investigate the high resolution absorption spectroscopy of P2 radical, generated in ac glow discharge of PC13 buffered with helium, using optical heterodyne magnetic rotation enhanced concentration modulation spectroscopy in the visible region. The （1, 2）, （1, 3） and （2, 3） bands of c^3Ⅱu- b^3Ⅱg in the range 16620-17860cm^-1 are observed and their 3II2 3II2 subbands are rotationally analysed. A set of effective molecular constants for the Ω= 2 component of the states involved are determined.     

差分速度调制分子离子激光光谱技术

从理论上分析了速度调制激光光谱技术的技术特点及谱线线型,并在实验上采用差分速度调制激光光谱技术在可见光波段测量得到N⁺₂,CO⁺的光谱信号． 关键词：     

Isotopic Analysis to Determine All the Molecular Constants of O2^＋ in the A-X System

The linear correlated constants AD （centrifugal correction of the spin-orbit coupling constant） and γ （the spinrotation constant） involved in the second negative （A^2 Ⅱu-X^2 Ⅱg） system of O2^＋ are determined by nonlinear least-squares fitting the spectra of 16 O2^＋ and 18 0＋ using the isotopic effect. In addition, the molecular constants of the other O2^＋ isotopologues are predicted.     

极性分子HC2n+1(n=2,3,4)强场搜寻态减速

Laser-assisted Stark deceleration scheme was proposed to decelerate the high-field-seeking molecule ICl in its rovibronic ground state. However, the laser intensity of 1.0×10¹⁰ W/cm² is hard to realize in experiment. The time-of-flight signals of HC_2ⁿ+1N (n=2, 3 and 4) by three-dimensional Monte-Carlo simulation suggest that deceleration of such molecules is more feasible experimentally as only one-tenth laser intensity is needed.     

Stark effect of the hyperfine structure of ICl in its rovibronic ground state: Towards further molecular cooling

Hyperfine structures of ICl in its vibronic ground state due to the nuclear spin and electric quadruple interactions are determined by diagonalizing the effective Hamiltonian matrix. Furthermore, the Stark sub-levels are precisely determined as well. The results are helpful for electro-static manipulation(trapping or further cooling) of cold ICl molecules. For example, an electric field of 1000 V/cm can trap ICl molecules less than 637 μK in the lowest hyperfine level.