Vibrational excitation of CO molecules by infrared free electron laser

Y. Ogi, T. Endo, K. Tsukiyama, H. Kondoh, K. Tono, Y. Ogawa, Y. Hamada, T. Ohta, H. Kuroda

研究成果: Article査読

3 被引用数 (Scopus)

抄録

This paper describes the vibrational excitation of CO molecules by FEL-SUT (Free Electron Laser at Tokyo University of Science). FEL is tuned to 4.67 μm, corresponding to the X1Σ+(v″ = 1)←(v″ = 0) transition of CO. The population of the vibrationally excited states is probed by the (2 + 1) resonance enhanced multiphoton ionization technique via the B1Σ+ Rydberg state. We find that ∼10% of the population in v″ = 0 is excited to v″ = 1. In spite of the existence of the resonant vibrational ladder climbing channels via specific rotational levels, no signal originating from v″ = 2 is detectable. The predissociation in the B1Σ+(v′ = 2) state is believed to be responsible for the absence of CO+ signals.

本文言語English
ページ(範囲)67-73
ページ数7
ジャーナルJournal of Electron Spectroscopy and Related Phenomena
128
1
DOI
出版ステータスPublished - 2003 1
外部発表はい

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 放射線
  • 原子分子物理学および光学
  • 凝縮系物理学
  • 分光学
  • 物理化学および理論化学

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