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Post-Ionization Dynamics of the Polar Molecule OCS in Asymmetric Laser Fields
https://repo.qst.go.jp/records/85113
https://repo.qst.go.jp/records/851138c490944-8034-44ac-9955-023e167b2f53
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2020-05-08 | |||||
| タイトル | ||||||
| タイトル | Post-Ionization Dynamics of the Polar Molecule OCS in Asymmetric Laser Fields | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | journal article | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
Endo, Tomoyuki
× Endo, Tomoyuki× Karl-Michael, Ziems× Richter, Martin× G. Froebel, Friedrich× Hishikawa, Akiyoshi× Stefanie, Gräfe× François, Légaré× Ibrahim, Heide× Tomoyuki, Endo |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | We have investigated the dissociation mechanisms of the prototypical heavy polar molecule OCS into the two break-up channels of the dication, OCS2+ → O+ + CS+ and OC+ + S+, in phase-locked two-color intense laser fields. The branching ratio of the breaking of the C–O and C–S bonds followed a pronounced 2 pi - oscillation with a modulation depth of 11 %, depending on the relative phase of the two-color laser fields. The fragment ejection direction of both break-up channels reflects the anisotropy of the tunneling ionization rate, following a 2 pi-periodicity, as well. The two dissociation pathways in the C–S bond breaking channel show different phase dependencies of the fragment ejection direction, which are, with the help of theory, assigned to post-ionization interaction. These observations, resulting from the excitation with asymmetric two-color intense laser fields, supported by state-of-the-art theoretical simulations, reveal the importance of post-ionization population dynamics in addition to tunneling ionization in the molecular fragmentation processes, even for heavy polar molecules. | |||||
| 書誌情報 |
frontiers in Chemistry 巻 10, p. 859750, 発行日 2022-03 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 2296-2646 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.3389/fchem.2022.859750 | |||||
| 関連サイト | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | https://doi.org/10.3389/fchem.2022.859750 | |||||
