Electron trapping by two parallel-propagating intense laser beams

In order to enhance the signal of the weak nonlinear strong-field phenomenon induced by free electron interaction with intense laser fields, a scheme to trap the high-energy electrons by two parallel-propagating laser beams has been proposed. The mechanism is based upon the electron inelastic scattering by intense laser beams, i.e., when the electron passes the first beam with greatly reduced transverse momentum, it will not have enough momentum to pass the second beam and thus be trapped between the two beams.