光学学报, 1999, 19 (12): 1604, 网络出版: 2006-08-09
钾原子的双光子共振三光子电离
Two-Photon Resonant Three-Photon Ionization of Atomic Potassium
双光子共振三光子电离 光电离截面 能量积聚效应 two-photon resonant three-photon ionization photon-ionization cross-section energy pooling effect
摘要
在钾蒸气中用双光子共振三光子电离法测出了钾原子6S态的电离流随时间的衰减曲线。 由电离流和多光子动力学参数的关系计算了6S态的光电离截面。 当用766.4nm和769.8nm单光子激发时, 通过能量积聚效应也可诱导钾原子得以电离。
Abstract
By two-photon resonant three-photon ionization in atomic potassium, the ion current decay curve was measured. From the relation between ion current and multi-photon dynamic parameter, photo-ionization cross-section of 6S state in atomic potassium was determined. When excited with one-photon at 766.4 nm and 769.8 nm, the atomic potassium was ionized by energy pooling effect.
李昌勇, 肖连团, 李倩, 贾锁堂, 周国生. 钾原子的双光子共振三光子电离[J]. 光学学报, 1999, 19(12): 1604. 李昌勇, 肖连团, 李倩, 贾锁堂, 周国生. Two-Photon Resonant Three-Photon Ionization of Atomic Potassium[J]. Acta Optica Sinica, 1999, 19(12): 1604.
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