Production of a beam of highly vibrationally excited CO using perturbations.
Production of a beam of highly vibrationally excited CO using perturbations.
复制标题
利用扰动产生高度振动激发的 CO 束。
DOI：
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发表时间：
2012
影响因子：
4.4
通讯作者：
A. Wodtke
中科院分区：
文献类型：
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作者：
N. Bartels;Tim Schäfer;Jens Hühnert;R. Field;A. Wodtke
用一种新的方法产生了CO（X（1）<$（+））分子高振动态（v = 17，18）的强流分子束，我们称之为微扰-微扰-微扰和DUMP.其基本思想是通过受A（1）Π态扰动的双光子双共振跃迁获得CO e（3）Σ（-）的高振动态。从这种混合态（主要是三重态）转储允许进入CO的高振动能级（X（1）π（+））。成功的方法，它避免了在任何的激发步骤中使用真空紫外辐射，被证明是由激光诱导荧光和共振增强多光子电离光谱。
An intense molecular beam of CO (X(1)Σ(+)) in high vibrational states (v = 17, 18) was produced by a new approach that we call PUMP - PUMP - PERTURB and DUMP. The basic idea is to access high vibrational states of CO e(3)Σ(-) via a two-photon doubly resonant transition that is perturbed by the A(1)Π state. DUMP -ing from this mixed (predominantly triplet) state allows access to high vibrational levels of CO (X(1)Σ(+)). The success of the approach, which avoids the use of vacuum UV radiation in any of the excitation steps, is proven by laser induced fluorescence and resonance enhanced multi-photon ionization spectroscopy.