Abstract
The temporal effects of multiphoton ionization are investigated using a two-color method which determines both the time and intensity at which the process occurs. We show that the total ionization efficiency depends strongly on the time at which an atom makes a transition to an excited state during an intense laser pulse. This result clearly shows that the ac-Stark-shifted bound-state resonances not only enhance the cross section for photoionization, but that the excited bound states provide temporary storage states for the atomic population during the photoionization process.
Recommended Citation
J. G. Story and T. F. Gallagher, "Temporal Effects in Multiphoton Ionization of Lithium," Physical Review A, vol. 47, no. 6, pp. 5037 - 5040, American Physical Society (APS), Jun 1993.
The definitive version is available at https://doi.org/10.1103/PhysRevA.47.5037
Department(s)
Physics
International Standard Serial Number (ISSN)
1050-2947
Document Type
Article - Journal
Document Version
Final Version
File Type
text
Language(s)
English
Rights
© 1993 American Physical Society (APS), All rights reserved.
Publication Date
01 Jun 1993
