排序方式: 共有5条查询结果,搜索用时 15 毫秒
1
1.
2.
3.
Photodissociation of jet-cooled HOD via the ? state around 124 nm has been studied using the H(D)-atom Rydberg tagging time-of-flight technique. Rotational state resolved action spectrum and the product translational energy distribution spectra have been recorded for both D+OH and H+OD dissociation channels. Product channel OH/OD branching ratios for the individual ?- X rotational transition have been determined. A comparison is also given with the B- X and ?- X transitions. In addition, the dissociation energy of the OD bond in HOD has been determined accurately to be 41751.3±5 cm-1. 相似文献
4.
In this paper,we present a theoretical simulation of ~(87)Rb absorption spectrum in a thermal cm-cell which is adaptive to the experimental observation.In experiment,the coupling and probe beams are configured to copropagate but perpendicular polarized,making up to five velocity selective optical pumping(VSOP) absorption dips able to be identified.A A-type electromagnetically induced transparency(EIT) is also observed for each group of velocity-selected atoms.The spectrum by only sweeping the probe beam can be decomposed into a combination of Doppier-broadened background and three VSOP dips for each group of velocity-selected atoms,accompanied by an EIT peak.This proposed theoretical model can be used to simulate the spectrum adaptive to the experimental observation by the non-linear least-square fit method.The fit for the high quality of experimental observation can determine valuable transition parameters such as decaying rates and coupling beam power accurately. 相似文献
5.
利用氢原子里德堡时间飞行谱技术研究了超音速喷射分子束CH3OH和C2H5OH在157 nm的光解动力学,得到了氢原子产物的时间飞行谱.通过对谱图的拟合揭示出三个氢原子产物通道:OH上的氢原子脱落、CH3(C2H5)上的氢原子脱落和CH3O(C2H5O)的二次解离. 从得到的产物通道相对分支比可以知道CH3O的二次解离过程比C2H5O更明显.CH3OH解离的产物平均角分布各向异性参数β≈-0.3, 显示出跃迁偶极距接近垂直于C-O-H平面.C2H5OH解离的产物β≈-0.4,表明C2H5OH有更长的转动周期. 实验结果显示两个系统都经历了从3px到3s势能面的快速内转换, 然后在3s势能面上解离.CH3O+H产物平动能分布显示出CH3O的伞形振动激发或者CH3的摇摆振动激发,而C2H5O+H产物平动能分布没有振动态分辨. 相似文献
1