Propagation dynamics of intense femtosecond pulses: Multiple splittings, coalescence, and continuum generation
Physical Review Letters
We present a scenario of (3+1)-dimensional spatiotemporal dynamics of femtosecond laser pulses in a nonlinear media with normal dispersion. The sequence of events at progressively higher powers can be characterized as single splitting, multiple splitting, and coalescence. Self-focusing and splitting events are in general spatially separated. Experimental data confirm the above scenario, with measurements at the highest powers corresponding to the regime of continuum generation.
Zozulya, Alex, Scott Diddams, Engen A. Van, and Tracy Clement. "Propagation Dynamics of Intense Femtosecond Pulses: Multiple Splittings, Coalescence, and Continuum Generation." Physical Review Letters. 82.7 (1999): 1430-1433. Print.