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Physical Review E
The nonlinear dynamics of femtosecond optical pulses propagating in solid media with anomalous groupvelocity dispersion ͑GVD͒ is investigated. A map fixing the boundaries of collapse or noncollapse regimes for high-power beams versus the relative strength of GVD is first established. Next, from a nonlinear Schrödinger model accounting for higher-order dispersion, self-steepening, and plasma generation, the possibility of producing extended collapse events that promote a long self-guiding isdoi:10.1103/physreve.71.065601 pmid:16089810 fatcat:plpd6zyrona2jkyhf7cvef37ba