Polarization dependence in the UV laser desorption of NO from NiO(100)
Polarization dependence in the UV laser desorption of NO from NiO(100)
复制标题
NiO(100) 中 NO 的紫外激光解吸的偏振依赖性
DOI：
10.1007/s003400050672
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发表时间：
1999
期刊：
影响因子：
--
通讯作者：
K. Al‐Shamery
中科院分区：
文献类型：
--
作者：
H. Zacharias;G. Eichhorn;R. Schliesing;K. Al‐Shamery
- 和极化辐射。当产额与入射光通量有关时，得到了在-偏振光和-偏振光下的脱附截面分别为（1.9±0.3）×10-17 cm ~ 2和（3.3±0.5）×10-17 cm ~ 2。为了评估衬底激发的重要性，NiO的光学常数已被确定为所采用的光子能量。当解吸产率，然后有关的NiO膜中吸收的光子通量，得到更大的横截面，和更大的有效性偏振光。对于直接光激发的电荷转移态的影响所涉及的国家的对称性进行了讨论。结果表明，激发到A“”态是优先选择的。
- and -polarized radiation. When the yield is related to the incident photon flux, desorption cross sections of (1.9±0.3)×10-17 cm2 and (3.3±0.5)×10-17 cm2 for - and -polarized light, respectively, are deduced. In order to assess the importance of substrate excitation the optical constants of NiO have been determined for the photon energy employed. When the desorption yield is then related to the photon flux absorbed in the NiO film, much larger cross sections are obtained, and an even larger effectiveness of -polarized light. For a direct optical excitation of charge transfer states the implications for the symmetry character of the states involved are discussed. It is concluded that excitations to A′′ states are preferred.