The light amplification effect in the Coulomb scattering of nonrelativistic electrons in the field of strong circularly polarized light wave

The gain coefficient of amplified electromagnetic field in the scattering of nonrelativistic electron by a nucleus in the weak-, medium- and strong-field regions of a circularly polarized electromagnetic wave is theoretically investigated. The light amplification effect was discovered in the polar-angles range of an initial electron near-by a polarization-plane of a wave. It is shown, that in optical frequencies region, the gain coefficient of amplified field maybe a value of order similar to 10(-2) cm(-1) for the sufficiently intense electron beams.