Light bullet formation in a cubic-quintic nonlinear medium

The similarity of interactions between (3+1)D spatiotemporal optical solitons in both the dispersive medium with cubic-quintic nonlinearity and the saturable medium

“…[14,16] To arrest the catastrophic collapse, various schemes have been proposed. [15] Usually, the saturable nonlinearity [17,18] and the cubicquintic (CQ) nonlinearity [19,20] are used. The saturable medium in which the index change saturates with increasing intensity can support stable (3+1)D STSs [17,18] and interactions between (3+1)D STSs in this medium have also been investigated by numerical simulations.…”

“…[22] In addition, it shows that (3+1)D STSs can exist in the CQ medium. [19,20] However, their interactions between STSs in this medium have received less attention. Since the spatial optical solitons in different media exhibit universality in interactions, [6] it is interesting to answer the following question: is this true for spatiotemporal optical solitons?…”

Energy exchange between (3+1)D colliding spatiotemporal optical solitons in dispersive media with cubic—quintic nonlinearity

“…[13,14] To arrest the catastrophic collapse, various schemes have been proposed. [5] To mention but a few, the saturable nonlinearity [15,16] and the CQ nonlinearity [17,18] were introduced in the media. In saturable media, where the varying index saturates with increasing intensity, energy exchange between colliding (3+1)D STSs has been studied.…”

Elastic collision and molecule formation of spatiotemporal light bullets in a cubic-quintic nonlinear medium

“…Dispersion management can stabilize light bullets in a medium with cubic nonlinearity [19]. There has been variational study of light bullets in a cubic-quintic medium [20] where a condition of stability was obtained. Another study suggested a way of the stabilization of light bullets in a cubic-quintic medium by a periodic variation of diffraction and dispersion [21].…”