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	De-excitation dynamics of small molecules investigated by femtosecond multiphoton ionization; 用飞秒多光子电离研究小分子激发态动力学
	Wang L(王利) ; Liu HP(刘洪平) ; Yin SH(尹淑慧) ; Zhang JY(张建阳) ; Lou NQ(楼南泉)
	2000-07-22
会议名称	international symposium on ultrafast phenomena & terahertz waves
会议日期	2000-7-22
会议地点	中国
其他题名	用飞秒多光子电离研究小分子激发态动力学
页码	48/4
通讯作者	王利
中文摘要	de-excitation dynamics of small molecules investigated by femtosecond multiphoton ionization by using home-made solid-state kilohertz femtosecond laser system and time-of-flight mass spectrometer (tof-ms), the de-excitation dynamics of small molecules, such as ocs, cs2 and nh3, are investigated in real time. the cross correlation width is identified as 141fs by xe pump-probe experiment. the lifetime of ocs in its rydberg state [1] is experimentally determined to be fs for the first time. this picosecond decay process indicates that the excited state is predissociative. rydberg states of cs2 [2] de-excites in 948 ± 23 fs. for nh3, for the first real-time, the lifetime constant in ¢1a1¢ state is determined as 936 ± 92 fs. the internal conversion predissociation mechanism of the ¢1a1¢ state, suggested by dixon et al. [3] can be used to interpret this de-excitation process.
会议主办者	中国科学院物理研究所
学科主题	物理化学
语种	中文
内容类型	会议论文
源URL	[http://159.226.238.44/handle/321008/111278]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
推荐引用方式 GB/T 7714	Wang L,Liu HP,Yin SH,et al. De-excitation dynamics of small molecules investigated by femtosecond multiphoton ionization, 用飞秒多光子电离研究小分子激发态动力学[C]. 见:international symposium on ultrafast phenomena & terahertz waves. 中国. 2000-7-22.

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