Research Papers in Physics and Astronomy


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Published in PHYSICAL REVIEW LETTERS 102, 103201 (2009). DOI: 10.1103/PhysRevLett.102.103201 Copyright (c) 2009 The American Physical Society. Used by permission.


Orders of magnitude increases are predicted in the cross sections for electron-atom scattering accompanied by absorption or emission of n laser photons for incident electron energies at which the electron, by emitting μ laser photons, can be captured by the atom to form a negative ion. Enhancements are most significant in the plateau region (n >> μ) of the scattered electron spectrum, whose shape is predicted to replicate that of the ion’s (n + μ)-photon detachment spectrum.

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