Real-time detection of S(1D2) photofragments produced from the 1B2(1Σu+) state of CS2 by vacuum ultraviolet photoelectron imaging using 133 nm probe pulses

Horio, Takuya and Spesyvtsev, Roman and Furumido, Yu and Suzuki, Toshinori (2017) Real-time detection of S(1D2) photofragments produced from the 1B2(1Σu+) state of CS2 by vacuum ultraviolet photoelectron imaging using 133 nm probe pulses. Journal of Chemical Physics, 147 (1). 013932. ISSN 0021-9606 (https://doi.org/10.1063/1.4982219)

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Abstract

Ultrafast photodissociation dynamics from the 1B2(1Σu+) state of CS2 are studied by time-resolved photoelectron imaging using the fourth (4ω, 198 nm) and sixth (6ω, 133 nm) harmonics of a femtosecond Ti:sapphire laser. The 1B2 state of CS2 was prepared with the 4ω pulses, and subsequent dynamics were probed using the 6ω vacuum ultraviolet (VUV) pulses. The VUV pulses enabled real-time detection of S(1D2) photofragments, produced via CS2*(1B2(1Σu+)) → CS(X 1Σ+) + S(1D2). The photoionization signal of dissociating CS2*(1B2(1Σu+)) molecules starts to decrease at about 100 fs, while the S(1D2) fragments appear with a finite (ca. 400 fs) delay time after the pump pulse. Also discussed is the configuration interaction of the 1B2(1Σu+) state based on relative photoionization cross-sections to different cationic states.

  • Item type:Article
    ID code:60906
    Dates:
    Date
    Event
    7 July 2017
    Published
    9 May 2017
    Published Online
    13 April 2017
    Accepted
    Notes:This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. The following article appeared in Horio, T., Spesyvtsev, R., Furumido, Y., & Suzuki, T. (2017). Real-time detection of S(1D2) photofragments produced from the 1B2(1Σu+) state of CS2 by vacuum ultraviolet photoelectron imaging using 133 nm probe pulses. Journal of Chemical Physics, 147(1), [013932] and may be found at https://doi.org/10.1063/1.4982219.
    Subjects:Science > Physics
    Department:Faculty of Science > Physics
    Depositing user: Pure Administrator
    Date deposited:12 Jun 2017 11:26
    Last modified:19 Apr 2024 00:19
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/60906
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