dc.contributor.authorWei, Zhengrong
dc.contributor.authorLi, Jialin
dc.contributor.authorWang, Lin
dc.contributor.authorSee, Soo Teck
dc.contributor.authorJhon, Mark Hyunpong
dc.contributor.authorZhang, Yingfeng
dc.contributor.authorShi, Fan
dc.contributor.authorYang, Minghui
dc.contributor.authorLoh, Zhi-Heng
dc.identifier.citationWei, Z., Li, J., Wang, L., See, S. T., Jhon, M. H., Zhang, Y., Shi, F., et al. (2017). Elucidating the origins of multimode vibrational coherences of polyatomic molecules induced by intense laser fields. Nature Communications, 8(1), 735-.en_US
dc.description.abstractStrong-field laser–molecule interaction forms much of the basis for initiating and probing ultrafast quantum dynamics. Previous studies aimed at elucidating the origins of vibrational coherences induced by intense laser fields have been confined to diatomic molecules. Furthermore, in all cases examined to date, vibrational wave packet motion is found to be induced by R-selective depletion; wave packet motion launched by bond softening, though theoretically predicted, remains hitherto unobserved. Here we employ the exquisite sensitivity of femtosecond extreme ultraviolet absorption spectroscopy to sub-picometer structural changes to observe both bond softening-induced vibrational wave packets, launched by the interaction of intense laser pulses with iodomethane, as well as multimode vibrational motion of the parent ion produced by strong-field ionization. In addition, we show that signatures of coherent vibrational motion in the time-dependent extreme ultraviolet absorption spectra directly furnish vibronic coupling strengths involving core-level transitions, from which geometrical parameters of transient core-excited states are extracted.en_US
dc.description.sponsorshipASTAR (Agency for Sci., Tech. and Research, S’pore)en_US
dc.description.sponsorshipMOE (Min. of Education, S’pore)en_US
dc.format.extent7 p.en_US
dc.relation.ispartofseriesNature Communicationsen_US
dc.rights© 2017 The Author(s) (Nature Publishing Group). This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.en_US
dc.subjectAtomic Absorption Spectroscopyen_US
dc.subjectMolecular Analysisen_US
dc.titleElucidating the origins of multimode vibrational coherences of polyatomic molecules induced by intense laser fieldsen_US
dc.typeJournal Article
dc.contributor.researchCentre for Optical Fibre Technologyen_US
dc.contributor.researchThe Photonics Instituteen_US
dc.contributor.schoolSchool of Physical and Mathematical Sciencesen_US
dc.description.versionPublished versionen_US

Files in this item


This item appears in the following Collection(s)

Show simple item record