Reflectionofspatiotemporalopticalvortexfroma relativisticflyingmirror

Le résumé fourni par la source

In this study, the change in the angular momentum of a spatiotemporal optical vortex beam (STOV) after reflection by a relativistic flying mirror was investigated using theoretical analysis and particle-in-cell simulations. Unlike longitudinal AM in vortex beams, the transverse AM of the reflected STOV beam is amplified, with a dependence on the relativistic factor of the flying mirror. However, the enhancement in the angular momentum diminished as the incident angle increased. Our results not only provide a promising corroboration of the tensorial transformation in special relativity, but also establish a theoretical foundation for designing and interpreting experiments in high-energy charged-particle-beam and electromagnetic-radiation physics.

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