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In this paper, the spontaneous bremsstrahlung emission from an electronscattered by two fixed nuclei in an intense laser field is investigated indetails based upon the Volkov state and the Dirac-Volkov propagator. It hasbeen found that the fundamental harmonic spectrum from the electron radiationexhibits distinctive fringes, which is dependent not only upon the internucleusdistance and orientation, but also upon the initial energy of the electron andthe laser intensity. By analyzing the differential cross section, we are ableto explain these effects in terms of interference among the electron scatteringby the nuclei. These results could have promising applications in probing theatomic or molecular dressed potentials in intense laser fields.

The interference effect of laser-assisted bremsstrahlung emission in Coulumb fields of two nuclei