Spatio-temporal reshaping and X Wave dynamics in optical filaments

D. Faccio; A. Averchi; A. Couairon; M. Kolesik; J. V. Moloney; A. Dubietis; G. Tamosauskas; P. Polesana; A. Piskarskas; P. Di Trapani

doi:10.1364/OE.15.013077

Spatio-temporal reshaping and X Wave dynamics in optical filaments

D. Faccio, A. Averchi, A. Couairon, M. Kolesik, J. V. Moloney, A. Dubietis, G. Tamosauskas, P. Polesana, A. Piskarskas, P. Di Trapani

Optical Sciences, College of

Research output: Contribution to journal › Article › peer-review

66 Scopus citations

Abstract

We investigate ultrashort laser pulse filamentation within the framework of spontaneous X Wave formation. After a brief overview of the filamentation process we study the case of an intense filament co-propagating with a weaker seed pulse. The filament is shown to induce strong Cross-Phase-Modulation (XPM) effects on the weak seed pulse: driven by the pump, the seed pulse undergoes pulse splitting with the daughter pulses slaved to their pump counterparts. They undergo strong spatio-temporal reshaping and are transformed into X Waves traveling at the same group velocities as the pump split-off pulses. In the presence of a gain mechanism such as Four-Wave-Mixing or Stimulated Raman Scattering, energy is then transferred from the pump filament leading to amplification of the seed X Wave and formation of a temporally compressed intensity peak.

Original language	English (US)
Pages (from-to)	13077-13095
Number of pages	19
Journal	Optics Express
Volume	15
Issue number	20
DOIs	https://doi.org/10.1364/OE.15.013077
State	Published - Oct 1 2007

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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title = "Spatio-temporal reshaping and X Wave dynamics in optical filaments",

abstract = "We investigate ultrashort laser pulse filamentation within the framework of spontaneous X Wave formation. After a brief overview of the filamentation process we study the case of an intense filament co-propagating with a weaker seed pulse. The filament is shown to induce strong Cross-Phase-Modulation (XPM) effects on the weak seed pulse: driven by the pump, the seed pulse undergoes pulse splitting with the daughter pulses slaved to their pump counterparts. They undergo strong spatio-temporal reshaping and are transformed into X Waves traveling at the same group velocities as the pump split-off pulses. In the presence of a gain mechanism such as Four-Wave-Mixing or Stimulated Raman Scattering, energy is then transferred from the pump filament leading to amplification of the seed X Wave and formation of a temporally compressed intensity peak.",

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AU - Faccio, D.

AU - Averchi, A.

AU - Couairon, A.

AU - Kolesik, M.

AU - Moloney, J. V.

AU - Dubietis, A.

AU - Tamosauskas, G.

AU - Polesana, P.

AU - Piskarskas, A.

AU - Di Trapani, P.

PY - 2007/10/1

Y1 - 2007/10/1

N2 - We investigate ultrashort laser pulse filamentation within the framework of spontaneous X Wave formation. After a brief overview of the filamentation process we study the case of an intense filament co-propagating with a weaker seed pulse. The filament is shown to induce strong Cross-Phase-Modulation (XPM) effects on the weak seed pulse: driven by the pump, the seed pulse undergoes pulse splitting with the daughter pulses slaved to their pump counterparts. They undergo strong spatio-temporal reshaping and are transformed into X Waves traveling at the same group velocities as the pump split-off pulses. In the presence of a gain mechanism such as Four-Wave-Mixing or Stimulated Raman Scattering, energy is then transferred from the pump filament leading to amplification of the seed X Wave and formation of a temporally compressed intensity peak.

AB - We investigate ultrashort laser pulse filamentation within the framework of spontaneous X Wave formation. After a brief overview of the filamentation process we study the case of an intense filament co-propagating with a weaker seed pulse. The filament is shown to induce strong Cross-Phase-Modulation (XPM) effects on the weak seed pulse: driven by the pump, the seed pulse undergoes pulse splitting with the daughter pulses slaved to their pump counterparts. They undergo strong spatio-temporal reshaping and are transformed into X Waves traveling at the same group velocities as the pump split-off pulses. In the presence of a gain mechanism such as Four-Wave-Mixing or Stimulated Raman Scattering, energy is then transferred from the pump filament leading to amplification of the seed X Wave and formation of a temporally compressed intensity peak.

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Spatio-temporal reshaping and X Wave dynamics in optical filaments

Abstract

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