English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT

Released

Journal Article

Crossover from tunneling to multiphoton ionization of atoms

MPS-Authors
/persons/resource/persons30684

Klaiber,  Michael
Division Prof. Dr. Christoph H. Keitel, MPI for Nuclear Physics, Max Planck Society;

External Resource
No external resources are shared
Fulltext (restricted access)
There are currently no full texts shared for your IP range.
Fulltext (public)

1609.04374.pdf
(Preprint), 620KB

Supplementary Material (public)
There is no public supplementary material available
Citation

Klaiber, M., & Briggs, J. S. (2016). Crossover from tunneling to multiphoton ionization of atoms. Physical Review A, 94(05): 053405. doi:10.1103/PhysRevA.94.053405.


Cite as: https://hdl.handle.net/11858/00-001M-0000-002C-081E-C
Abstract
We present a theory illuminating the cross-over from strong-field tunnelling ionization to weak-field multiphoton ionization in the interaction of a classical laser field with a hydrogen atom. A simple formula is derived in which the ionization amplitude appears as a product of two separate amplitudes. The first describes the initial polarization of the atom by virtual multiphoton absorption and the second the subsequent tunnelling out of the polarized atom. Tunnelling directly from the ground state and multiphoton absorption without tunnelling appear naturally as the limits of the theory.