The femtosecond (1, 2, 1)-d spatio–temporal superspike

摘要: Abstract We investigate the formation and dynamics of a spatio–temporal superspike propagating in (1,2,1)-d configuration focusing nonlinear saturable Kerr medium anomalous group velocity dispersion regime. The effects dispersion, diffraction, non-paraxial correction, nonlinearity, self-steepening, stimulated Raman scattering, higher order terms on propagation are included simulations. Both intensity distribution spectral content investigated. results also compared with those material if it was normal main result paper is that major maxima may develop off-axis regime for distances longer than diffraction length.