, Volume 16, Issue 2, pp 284-288

Photoemission from solid surfaces in intense laser fields

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Abstract

We present a Floquet analysis of photoemission of electrons from a solid surface due to its interaction with a laser beam. The method we use is based on a three-dimensional quasifree electron model. The model takes account of the changes in the effective mass of the electron inside and outside the solid and in the reflected and refracted beams due to the presence of the surface. It is shown that the photoemission of electrons from the solid surface may take place not only with no absorption of photons but also along with the emission of extra photons.

Original Text © Astro, Ltd., 2006.