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

Takuya Horio, Roman Spesyvtsev, Yu Furumido, Toshinori Suzuki

研究成果: Contribution to journalArticle査読

7 被引用数 (Scopus)


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(X1Σ+) + 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.

ジャーナルJournal of Chemical Physics
出版ステータス出版済み - 7 7 2017

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

フィンガープリント 「Real-time detection of S(<sup>1</sup>D<sub>2</sub>) photofragments produced from the <sup>1</sup>B<sub>2</sub>(<sup>1</sup>Σ<sub>u</sub><sup>+</sup>) state of CS<sub>2</sub> by vacuum ultraviolet photoelectron imaging using 133 nm probe pulses」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。