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| 001 | 459256 | ||
| 005 | 20230310120355.0 | ||
| 024 | 7 | _ | |a arXiv:2010.09406 |2 arXiv |
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| 024 | 7 | _ | |a 10.3204/PUBDB-2021-02517 |2 datacite_doi |
| 037 | _ | _ | |a PUBDB-2021-02517 |
| 041 | _ | _ | |a English |
| 082 | _ | _ | |a 540 |
| 100 | 1 | _ | |a Karamatskos, Evangelos T. |0 P:(DE-H253)PIP1025827 |b 0 |
| 245 | _ | _ | |a Time-resolving the UV-initiated photodissociation dynamics of OCS |
| 260 | _ | _ | |c 2021 |
| 336 | 7 | _ | |a Preprint |b preprint |m preprint |0 PUB:(DE-HGF)25 |s 1622810908_16914 |2 PUB:(DE-HGF) |
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| 336 | 7 | _ | |a Electronic Article |0 28 |2 EndNote |
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| 336 | 7 | _ | |a ARTICLE |2 BibTeX |
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| 500 | _ | _ | |a 25 pages, 5 figures |
| 520 | _ | _ | |a We present a time-resolved study of the photodissociation dynamics of OCS after UV-photoexcitation at $\lambda=237$ nm. OCS molecules ($X\,^1\Sigma^+$) were primarily excited to the $1\,^1\!A''$ and the $2\,^1\!A'$ Renner-Teller components of the $^1\Sigma^{-}$ and $^1\!\Delta$ states. Dissociation into CO and S fragments was observed through time-delayed strong-field ionisation and imaging of the kinetic energy of the resulting CO$^+$ and S$^+$ fragments by intense $790$ nm laser pulses. Surprisingly, fast oscillations with a period of $\sim100$ fs were observed in the S$^+$ channel of the UV dissociation. Based on wavepacket-dynamics simulations coupled with a simple electrostatic-interaction model, these oscillations do not correspond to the known highly-excited rotational motion of the leaving CO$(X\,^1\Sigma^+,J\gg0)$ fragments, which has a timescale of $\sim140$ fs. Instead, we suggest to assign the observed oscillations to the excitation of vibrational wavepackets in the $2\,^3\!A''$ or $2\,^1\!A''$ states of the molecule that predissociate to form S$(^3\!P_{J})$ photoproducts. |
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| 700 | 1 | _ | |a Yarlagadda, Suresh |0 P:(DE-H253)PIP1084242 |b 1 |
| 700 | 1 | _ | |a Patchkovskii, Serguei |0 P:(DE-HGF)0 |b 2 |
| 700 | 1 | _ | |a Vrakking, Marc J. J. |0 P:(DE-H253)PIP1007368 |b 3 |
| 700 | 1 | _ | |a Welsch, Ralph |0 P:(DE-H253)PIP1032831 |b 4 |
| 700 | 1 | _ | |a Küpper, Jochen |0 P:(DE-H253)PIP1012175 |b 5 |e Corresponding author |
| 700 | 1 | _ | |a Rouzée, Arnaud |0 P:(DE-H253)PIP1008275 |b 6 |e Corresponding author |
| 773 | _ | _ | |p 1-25 |
| 856 | 4 | _ | |y OpenAccess |u https://bib-pubdb1.desy.de/record/459256/files/2010.09406v2.pdf |
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