Relativistic regimes for dispersive shock-waves in non-paraxial nonlinear optics

摘要

We investigate the effect of non-paraxiality in the dynamics of dispersiveshock waves in the defocusing nonlinear Schroedinger equation. We show that theproblem can be described in terms of a relativistic particle moving in apotential. Lowest order corrections enhance the wave-breaking and impose alimit to the highest achievable spectrum in an amount experimentally testable.