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。
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.
出处
《量子电子学报》
CAS
CSCD
1998年第3期293-296,共4页
Chinese Journal of Quantum Electronics
基金
国家自然科学基金
关键词
多光子电离
碘甲烷
飞行时间质谱
激光化学
multiphoton ionization, methyl iodide, time-of-flight mass spectrum
