ICCAS OpenIR
Neutral dissociation of hydrogen molecules in a strong laser field through superexcited states
Azarm, A.1,2; Song, D.3; Liu, K.3; Hosseini, S.1,2; Teranishi, Y.4,5; Lin, S. H.4,5; Xia, A.3; Kong, F.3; Chin, S. L.1,2
2011-04-28
Source PublicationJOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS
ISSN0953-4075
Volume44Issue:8
AbstractFragmentation of hydrogen molecules in a strong laser field is studied experimentally and theoretically. Balmer lines (n -> 2) from hydrogen atoms are observed up to n = 14. The emission intensity of the two strongest Balmer lines versus laser intensity in a log-log plot gives a slope of more than 11. This indicates that some high-lying states in the continuum are excited resulting in neutral dissociation. Adapting Rydberg state approximation, the potential energy curves of superexcited states of hydrogen are plotted. Semi-empirical calculation confirms dissociation through these superexcited states. The upper limit of the lifetime of the superexcited states is obtained by an ultrafast pump and probe experiment by monitoring one of the fluorescence lines.
DOI10.1088/0953-4075/44/8/085601
Indexed BySCI
Language英语
WOS IDWOS:000289411700011
PublisherIOP PUBLISHING LTD
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/73912
Collection中国科学院化学研究所
Corresponding AuthorAzarm, A.
Affiliation1.Univ Laval, Dept Phys Engn Phys & Opt, Quebec City, PQ G1V 0A6, Canada
2.Univ Laval, COPL, Quebec City, PQ G1V 0A6, Canada
3.Chinese Acad Sci, Inst Chem, Beijing 100190, Peoples R China
4.Acad Sinica, Inst Atom & Mol Sci, Taipei, Taiwan
5.Natl Chiao Tung Univ, Inst Appl Chem, Inst Mol Sci, Hsinchu 30050, Taiwan
Recommended Citation
GB/T 7714
Azarm, A.,Song, D.,Liu, K.,et al. Neutral dissociation of hydrogen molecules in a strong laser field through superexcited states[J]. JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS,2011,44(8).
APA Azarm, A..,Song, D..,Liu, K..,Hosseini, S..,Teranishi, Y..,...&Chin, S. L..(2011).Neutral dissociation of hydrogen molecules in a strong laser field through superexcited states.JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS,44(8).
MLA Azarm, A.,et al."Neutral dissociation of hydrogen molecules in a strong laser field through superexcited states".JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS 44.8(2011).
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