氮气/氨气的高压快脉冲放电光谱研究

本文测量了氮气、氨气及其混合气体的快脉冲放电等离子体的光谱,用光谱分析方法研究了等离子体成分及其与气压和配比的关系,并讨论了在制备氮化物时使用氮、氨混合气体的有利之处。     

IBr分子的多光子电离谱的分析

本文用多光子电离的方法,观察了IBr分子高电子态(E)的2光子共振跃迁,结合Franck-Condon原理,从IBr分子的振动谱分析,首次得到IBr(E)态的转动常数B’_(?)-(0.0653±0.0003)cm~(-1).     

EMISSION AND MASS SPECTRAL ANALYSES OF LASER ABLATED AlN PLUMES

The emission spectrum of the ³Π_i-³Π_i (0－0) AlN band and some N⁺ and N emission lines have been studied in the visible region for the laser ablated plumes. The Stark-shift and Stark broadening were observed. The component species in the ablated plumes were analyzed by time of flight mass spectroscopy. The electron density and the temperature were calculated from the Stark-shift and Stark broadening of N(²D) emission line. The densities of AlN⁺, Al⁺, N⁺, AlN, N and Al were estimated by the mass spectra and the Saha equation.     

用激光诱发荧光的方法研究CClF和C_2自由基的时间特性

用激光诱发荧光的方法研究了单支线TEA CO_2激光解离CCl_3F所产生的CClF和C_2自由基的电子激发态辐射寿命及自由基浓度的时间特性。     

Characterization of the high—voltage pulsed discharge plasma of ammonia by emission spectroscopy

We have used optical emission spectroscopy to characterize the high-voltage pulsed discharge of ammonia.Ammonia was highly dissociated in the discharge at low pressures.More atomic nitrogen was generated as compared to the discharge of nitrogen gas at the same pressure of 0.8kPa.We discuss the elimination of the oxygen impurity in the ammonia discharge,and we estimate the time-dependent atomic excitation temperature and the electron density from the measured spectra.     

Br2偶宇称里德堡态的转动结构和电子角动量

由（２＋１）多光子电离方法获得溴分子６８８００－６９６００ｃｍ＾－１范围内的［ΠΠ／２］４ｄ偶宇称里德堡态转动激发光谱，通过对转动光谱的分析，确定了转动常数，Ｂ８１－８１＝０．０８６８８。并对电子角动量进行了标定，角动量Ω＝１。     

CCl_3F红外多光子解离及反应通道的分析

用TEA CO_2激光对CCl_3F进行红外多光子解离.用染料激光诱发荧光和最终产物的红外光谱分析方法探测了解离中间产物Cl和CClF.解离的最终产物为CCl_4、CCl_2F_2及C_2Cl_2F_2的三个同分异构体.对解离过程和形成最终产物的可能反应通道进行了分析.     

CS2分子Penning电离的流动余辉光谱测量

用PIOS(Penning Ionization Opnieal Spectroseopy)方法首次观察到470～490nm间CS~+(A-X)13-2、14-3的发射带,发现此发射带偏重于在Ne/CS_2中产生.这些谱带的产生可用二次碰撞模型加以解释.