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Channel-resolved angular correlation between photoelectron emission and fragment ion recoil of ethanol in intense laser fields
https://repo.qst.go.jp/records/83228
https://repo.qst.go.jp/records/832285103ef83-e4ba-430d-800e-923490579bdb
| Item type | 一般雑誌記事 / Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2020-06-01 | |||||
| タイトル | ||||||
| タイトル | Channel-resolved angular correlation between photoelectron emission and fragment ion recoil of ethanol in intense 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 | 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 |
Itakura, Ryuji
× Itakura, Ryuji× Akagi, Hiroshi× Otobe, Tomohito× Ryuji, Itakura× Hiroshi, Akagi× Tomohito, Otobe |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | We investigate multi-channel dissociative ionization of ethanol in intense near-infrared laser fields with photoelectron-photoion coincidence three-dimensional momentum imaging. As the intensity of the linearly polarized laser field increases to 23 TW/cm^2, phoelectrons are dominantly emitted along the laser polarization. The photoelectron angular distributions (PADs) are not influenced by the orientation direction of ethanol with respect to the laser polarization direction. In the circularly polarized laser field with 80 TW/cm^2, the photoelectron angular distributions of CH3CD2OH in the recoil frame of the CD_2OH^+ and CH_3CD^+_2 channels are obtained. Photoelectrons in the CD_2OH^+ channel are preferentially emitted from the CH_3 moiety at the moment of birth. By the density functional theory, we calculate the ionization probability in the electric field as a function of its direction. The comparison between the observed and calculated recoil frame (RF)-PADs suggests that the inner valence 10a′ molecular orbital is deformed by the laser field prior to the photoelectron emission. It is clearly shown that there are two pathways, (i) photoelectron emission from 10a′ and (ii) photoelectron emission from 3a′′ (HOMO) followed by photoexcitation. In the CH_3CD^+_2 channel, the RF-PAD is found to be isotropic, suggesting the stepwise processes of photoelectron emission and subsequent photoexcitation. |
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| 書誌情報 |
Progress in Ultrafast Intense Laser Science XVI. Topics in Applied Physics, 巻 141, p. 65-81, 発行日 2021-08 |
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| 出版者 | ||||||
| 出版者 | Springer | |||||
| ISBN | ||||||
| 識別子タイプ | ISBN | |||||
| 関連識別子 | 978-3-030-75088-6 | |||||
| 関連サイト | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | https://doi.org/10.1007/978-3-030-75089-3_4 | |||||
