Generalization of Keldysh’s theory
- 18 September 2002
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 66 (3) , 033401
- https://doi.org/10.1103/physreva.66.033401
Abstract
In this paper, we generalize and improve the derivation of photoionization rate formula for one-electron atoms proposed by Keldysh [Zh. Eksp. Teor. Fiz. 47, 1945 (1964) [Sov. Phys. JETP 20, 1307 (1965)]]. More exact expressions of the photoionization rate in the tunneling regime have been obtained. In addition, we extend the derivation to photoionization rates of randomly oriented diatomic molecules.Keywords
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