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Self-guided propagation of ultrashort ir laser pulses in fused silica

  • S. Tzortzakis
  • , L. Sudrie
  • , M. Franco
  • , B. Prade
  • , A. Mysyrowicz
  • , A. Couairon
  • , L. Bergé
  • Laboratory d'Optique Appliquée, ENSTA, CNRS-École Polytechnique
  • Centre d'Etudes de Limeil-Valenton

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

We report self-guided propagation of ultrashort IR laser pulses in fused silica over several Rayleigh lengths. Self-guiding is accompanied by pulse splitting and time compression. Numerical simulations involving pulse self-focusing, temporal dispersion, and multiphoton ionization are found to be in good agreement with the experimental results. They show that a quasidynamic equilibrium between multiphoton ionization and self-focusing drives the filamentation process, while temporal dispersion plays a negligible role.

Original languageEnglish
Pages (from-to)213902-1-213902-4
JournalPhysical Review Letters
Volume87
Issue number21
DOIs
Publication statusPublished - 19 Nov 2001

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