Conical emission, pulse splitting and X-wave parametric amplification in nonlinear dynamics of ultrashort light pulses

Details Conical emission, pulse splitting and X-wave parametric amplification in nonlinear dynamics of ultrashort light pulses Conical emission, pulse splitting and X-wave parametric amplification in nonlinear dynamics of ultrashort light pulses

2005-10-24

arxiv.org/abs/physics/0510212v1

Physics

Optics

Scientific paper

10.1103/PhysRevLett.96.193901

The precise observation of the angle-frequency spectrum of light filaments in water reveals a scenario incompatible with current models of conical emission (CE). Its description in terms of linear X-wave modes leads us to understand filamentation dynamics requiring a phase- and group-matched, Kerr-driven four-wave-mixing process that involves two highly localized pumps and two X-waves. CE and temporal splitting arise naturally as two manifestations of this process.

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