Abstract
The process of stimulated coherent annihilation of relativistic electron–positron pairs in the strong laser field is examined. It is shown that if the energy of laser photon in the beam (center-of-mass) reference frame exceeds mc 2, coherent stimulated generation of γ-ray photons becomes possible. Electron–positron pair in the electromagnetic field can be considered as an inverted two-level quantum system, in which the two-photon transition is allowed with the stimulated emission of one γ-quantum and one photon of the laser mode. In analogy with the effect of self-induced transparency in the conventional nonlinear optics, the nonlinear oscillation regime arises at high laser intensities, in which inversion can be removed in one pass and the π-pulse of coherent γ-ray radiation is generated. Estimates show the scheme proposed is a promising high-brightness source of coherent γ-radiation.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
