Localization of circularly polarized intense electromagnetic waves in relativistic plasmas

Localization of a circularly polarized, high‐intensity electromagnetic field in a relativistic, unmagnetized plasma is considered. A new class of double‐hump electromagnetic soliton solutions having nonzero high‐frequency field intensity at the center is found for subsonic as well as supersonic velocities. For subsonic velocities, these solitons are found to be accompanied by density dips whereas supersonic solitons are associated with density humps. Parameter regions for the existence of different types of electromagnetic solitons are obtained explicitly. A few limiting cases of the general solutions obtained in the present theory are also discussed.