中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Pulse width effect on the dissociation probability of CH4+ in the intense femtosecond laser field

文献类型:期刊论文

作者Wang Cao; Song Di; Liu Yuyan; Kong Fan'ao
刊名CHINESE SCIENCE BULLETIN
出版日期2006-05-01
卷号51期号:10页码:1269-1272
关键词Femtosecond Laser Intense Laser Fields Methane Dissociation Probability Laser Pulse Width Field-assisted Dissociation
ISSN号1001-6538
DOI10.1007/s11434-006-1269-z
英文摘要The laser pulse width effect on the dissociation probability of CH4+ irradiated by an ultrafast laser has been investigated experimentally and theoretically. The femtosecond laser at 800 nm with an intensity of 8.0 x 10(13) W/cm(2) was used. The observed relative yield of the primary fragment ion CH3+ increases with increasing pulse width and tends to saturate when the pulse width is longer than 120 fs. The field-assisted dissociation (FAD) model and quasi-classical trajectory (QCT) calculation were applied to predicting the dissociation probability of CH4+. The calculated probability is corrected with the molecular orientation effect and the spatial distribution of laser intensity. The modified results show that the dissociation requires at least 23 fs and saturates with long pulse widths (>= 100 fs). The result is approximately consistent with the experimental observation.
语种英语
WOS记录号WOS:000238882200016
出版者SCIENCE CHINA PRESS
源URL[http://ir.iccas.ac.cn/handle/121111/59739]  
专题中国科学院化学研究所
通讯作者Kong Fan'ao
作者单位1.Chinese Acad Sci, Inst Chem, Beijing 100080, Peoples R China
2.Chinese Acad Sci, Wuhan Inst Phys & Math, Wuhan 430071, Peoples R China
3.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714
Wang Cao,Song Di,Liu Yuyan,et al. Pulse width effect on the dissociation probability of CH4+ in the intense femtosecond laser field[J]. CHINESE SCIENCE BULLETIN,2006,51(10):1269-1272.
APA Wang Cao,Song Di,Liu Yuyan,&Kong Fan'ao.(2006).Pulse width effect on the dissociation probability of CH4+ in the intense femtosecond laser field.CHINESE SCIENCE BULLETIN,51(10),1269-1272.
MLA Wang Cao,et al."Pulse width effect on the dissociation probability of CH4+ in the intense femtosecond laser field".CHINESE SCIENCE BULLETIN 51.10(2006):1269-1272.

入库方式: OAI收割

来源:化学研究所

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