C H Keitel et al 1998 J. Phys. B: At. Mol. Opt. Phys. 31 L75 doi:10.1088/0953-4075/31/3/002
Radiative reaction in ultra-intense laser - atom interaction
C H Keitel
, C Szymanowski
, P L Knight and A Maquet
LETTER TO THE EDITOR
The influence of the radiation of an initially bound electron in an ultra-intense laser field on its dynamics and the consequent corrections to its spectral response are investigated within the relativistic classical Lorentz - Dirac approach. We find appreciable damping of the electron motion in the direction of polarization of the laser field, and a consequent reduction of the electron oscillation frequency. This yields a further boost in the electron velocity in the direction of propagation of the laser pulse, which can also be understood as due to the reabsorption of emitted radiation mainly with momentum in the direction of electron motion. The increase in the redshift of the electron motion is visible in the spectral response detected perpendicular to the laser propagation direction.
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Issue 3 (14 February 1998)
Received 15 September 1997, in final form 26 November 1997
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Radiative reaction in ultra-intense laser - atom interaction
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