Neutral Dissociation of Superexcited Oxygen Molecules in Intense Laser Fields
文献类型：期刊论文
| 作者 | Song, Di2; Azarm, Ali3,4; Kamali, Yousef3,4; Liu, Kai2; Xia, Andong2; Teranishi, Yoshiaki1,5; Lin, Sheng-Hsien1,5; Kong, Fanao2; Chin, See Leang3,4 |
| 刊名 | JOURNAL OF PHYSICAL CHEMISTRY A
 |
| 出版日期 | 2010-03-11 |
| 卷号 | 114期号:9页码:3087-3095 |
| ISSN号 | 1089-5639 |
| DOI | 10.1021/jp907662z |
| 英文摘要 | Superexcited States (SESs) of oxygen molecules and their neutral dissociation processes have been studied both experimentally and theoretically using intense femtosecond laser. We find that at the laser Intensity of similar to 2 x 10(14) W/cm(2), ultrashort laser pulse causes neutral dissociation of oxygen molecule by way of SESs. The dissociation products are the excited neutral oxygen atoms, which are observed that fluorescence,Spectroscopy. Laser power dependence of the fluorescence intensity shows that each molecule effectively absorbs ill average of tell laser photons. The total energy absorbed is sufficient to stimulate the molecule to many of the SESs The effect is equivalent to single photon excitation in the extreme-ultraviolet (XUV) region by synchrotron radiation (SR). Morse potential energy curves (PECs). are constructed for the SESs of O(2) molecules. In light of the PECs, predissociation mechanism is proposed for the neutral dissociation. Quasi-classical trajectroy (QCT) calculations show that the predissociation time is as short as 100 fs, which is consistent with our experimental measurement using ultrafast pump-probe technique |
| 语种 | 英语 |
| WOS记录号 | WOS:000275046600017 |
| 出版者 | AMER CHEMICAL SOC |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/70309]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Lin, Sheng-Hsien |
| 作者单位 | 1.Acad Sinica, Inst Atom & Mol Sci, Taipei, Taiwan 2.Chinese Acad Sci, Inst Chem, Beijing 100190, Peoples R China 3.Univ Laval, Dept Phys Engn Phys & Opt, Quebec City, PQ G1V 0A6, Canada 4.Univ Laval, COPL, Quebec City, PQ G1V 0A6, Canada 5.Natl Chiao Tung Univ, Inst Appl Chem, Inst Mol Sci, Hsinchu, Taiwan |
| 推荐引用方式 GB/T 7714 | Song, Di,Azarm, Ali,Kamali, Yousef,et al. Neutral Dissociation of Superexcited Oxygen Molecules in Intense Laser Fields[J]. JOURNAL OF PHYSICAL CHEMISTRY A,2010,114(9):3087-3095. |
| APA | Song, Di.,Azarm, Ali.,Kamali, Yousef.,Liu, Kai.,Xia, Andong.,...&Chin, See Leang.(2010).Neutral Dissociation of Superexcited Oxygen Molecules in Intense Laser Fields.JOURNAL OF PHYSICAL CHEMISTRY A,114(9),3087-3095. |
| MLA | Song, Di,et al."Neutral Dissociation of Superexcited Oxygen Molecules in Intense Laser Fields".JOURNAL OF PHYSICAL CHEMISTRY A 114.9(2010):3087-3095. |
入库方式： OAI收割
来源：化学研究所
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