Phys. Rev. A 66, 033401 (2002) [12 pages]

Generalization of Keldysh’s theory

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K. Mishima¹, M. Hayashi², J. Yi¹, S. H. Lin¹, H. L. Selzle³, and E. W. Schlag³
¹Institute of Atomic and Molecular Sciences, Academia Sinica, P.O. Box 23-166, Taipei 10764, Taiwan, Republic of China
²Center for Condensed Matter Sciences, National Taiwan University, Taipei 106, Taiwan, Republic of China
³Institute of Physical and Theoretical Chemistry, Technical University of Munich, Garching, Germany

Received 3 December 2001; revised 12 June 2002; published 18 September 2002

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.

URL:

http://link.aps.org/doi/10.1103/PhysRevA.66.033401

DOI:

10.1103/PhysRevA.66.033401

PACS:

33.80.Rv, 32.80.Rm

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Phys. Rev. A 66, 033401 (2002) [12 pages]

Generalization of Keldysh’s theory

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