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arXiv · 1503.03708

Kapitza-Dirac scattering of electrons from a bichromatic standing laser wave

Matthias M. Dellweg·Carsten Müller
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Abstract

Coherent scattering of an electron beam by the Kapitza-Dirac effect from a standing laser wave which comprises two frequency components is studied. To this end, the Schrödinger equation is solved numerically with a suitable ponderomotive potential. Besides, an analytical solution for electron diffraction in the asymptotic domain of large field amplitudes is obtained and a mathematical model in reduced dimensionality for the scattering amplitude in the Bragg regime is presented. We demonstrate distinct interference signatures and relative phase effects when the standing wave contains a fundamental frequency and its second harmonic. The influence of the relative field intensities on the Rabi oscillation dynamics is also discussed.

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Matthias M. Dellweg, Carsten Müller. 2016-08-05. Kapitza-Dirac scattering of electrons from a bichromatic standing laser wave. https://doi.org/10.1103/physreva.91.062102

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