2005年3月
Ultrafast dissociation processes in the NO dimer studied with time-resolved photoelectron imaging
JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA
- ,
- ,
- 巻
- 142
- 号
- 3
- 開始ページ
- 193
- 終了ページ
- 205
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1016/j.elspec.2004.09.013
- 出版者・発行元
- ELSEVIER SCIENCE BV
Ultraviolet photodissociation of the NO dimer is studied with femtosecond time-resolved photoelectron imaging (TR-PEI) spectroscopy. Pump pulses in the range 200-235 nm are employed, while probe pulses are kept at 300 nm. The time dependencies of the observed photoelectron kinetic energies and photoelectron angular distributions support a picture in which valence state optically excited in the dimer evolves on a time scale of <1 ps to the dimer 3s Rydberg state. This dimer Rydberg state then undergoes fragmentation on a time scale of a few ps. In this study we focus on dissociation into an NO ground state fragment and an NO fragment in its 3s Rydberg A(2)Sigma(+) state. Every stage of this continuous process, viz. the dimer valence state, the dimer 3s Rydberg state, the separating NO(X) + NO(A) fragments, and the isolated NO(A) fragment is interrogated with TR-PEI. (C) 2004 Elsevier B.V. All rights reserved.
- リンク情報
- ID情報
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- DOI : 10.1016/j.elspec.2004.09.013
- ISSN : 0368-2048
- Web of Science ID : WOS:000227344500003