节点文献
CH3I在532nm及455.5nm激光作用下多光子电离研究
The Study of Multiphoton Ionization Dissociation of CH3I with 532 nm and 455.5 nm
【摘要】 本文利用飞行时间质谱仪研究了532nm和455.5nm激光作用下CH3I分子的多光子电离解离(MPID)。在532nm激光作用下,CH3I分子由双光子激发到A带的A2态,它的MPID属母体离子阶梯模式;在455.5nm激光作用下,CH3I分子由双光子激发到A带的3E态,它的MPID属中性碎片光电离模式。
【Abstract】 The multiphoton ionization-dissociation spectra of methyl iodide are given by 532 nm or 455.5 nm laser excitation in this paper. CH3I molecule is two-photon resonantly exited to 1AZ state of A-band by 532 nm laser excitation, and its MPID belongs to parent-ion ladder mechanism; CH3I molecule is two-photon resonantly exited to 3E state of A-band by 455.5 nm laser excitation, and its MPID belongs to neutral-fragment photoionization mechanism.
【关键词】 多光子电离;
碘甲烷;
飞行时间质谱;
【Key words】 multiphoton ionization; methyl iodide; time-of-flight mass spectrum;
【Key words】 multiphoton ionization; methyl iodide; time-of-flight mass spectrum;
【基金】 国家自然科学基金
- 【文献出处】 量子电子学报 ,CHINESE JOURNAL OF QUANTUM ELECTRONICS , 编辑部邮箱 ,1998年03期
- 【分类号】O644.18
- 【被引频次】6
- 【下载频次】63