Ion-coincidence momentum imaging of three-body Coulomb explosion of formaldehyde in ultrashort intense laser fields

M. Fushitani, Chien-Ming Tseng, A. Matsuda, A. Hishikawa*

*Corresponding author for this work

研究成果: Conference contribution

摘要

Three-body Coulomb explosion of formaldehyde (H2CO) in intense 7- and 35-fs laser fields (1.3 × 1015 W/cm2) has been investigated by using ion-coincidence momentum imaging technique. Two types of explosion pathways from the triply charged state, H2CO3+ → (i) H+ + H+ + CO+ and (ii) H+ + CH+ + O+, have been identified. It is shown from the momentum correlation of the fragment ions of pathway (i), that the geometrical structure of the molecule is essentially frozen along the H-C-H bending coordinate for the 7-fs case. On the other hand, for a longer pulse duration (35 fs), structural deformation along the C-H stretching and H-C-H bending coordinates is identified, which is ascribed to the nuclear dynamics in the dication states populated within the laser pulse duration.

原文English
主出版物標題International Conference of Computational Methods in Sciences and Engineering 2015, ICCMSE 2015
編輯Zacharoula Kalogiratou, Theodore E. Simos, Theodore Monovasilis, Theodore E. Simos, Theodore E. Simos
發行者American Institute of Physics Inc.
ISBN(電子)9780735413498
DOIs
出版狀態Published - 31 十二月 2015
事件International Conference of Computational Methods in Sciences and Engineering 2015, ICCMSE 2015 - Athens, Greece
持續時間: 20 三月 201523 三月 2015

出版系列

名字AIP Conference Proceedings
1702
ISSN(列印)0094-243X
ISSN(電子)1551-7616

Conference

ConferenceInternational Conference of Computational Methods in Sciences and Engineering 2015, ICCMSE 2015
國家Greece
城市Athens
期間20/03/1523/03/15

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