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Self-Guided Propagation of Ultrashort IR Laser Pulses in Fused Silica

Stellios Tzortzakis 1 Lionel Sudrie 1 Michel Franco 1 Bernard Prade 1 André Mysyrowicz 1 Arnaud Couairon 2 Luc Bergé 2
1 LOA - Laboratoire d'optique appliquée
2 DPTA - Département de Physique Théorique et Appliquée
DAM/DIF - DAM Île-de-France : DAM/DIF
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.
Keywords : filamentation nonlinear optics
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Journal articles
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https://hal-polytechnique.archives-ouvertes.fr/hal-00463709
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Submitted on : Sunday, March 14, 2010 - 7:47:10 PM
Last modification on : Friday, December 3, 2021 - 11:34:03 AM

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Stellios Tzortzakis, Lionel Sudrie, Michel Franco, Bernard Prade, André Mysyrowicz, et al.. Self-Guided Propagation of Ultrashort IR Laser Pulses in Fused Silica. Physical Review Letters, American Physical Society, 2001, 87 (21), pp.213902. ⟨10.1103/PhysRevLett.87.213902⟩. ⟨hal-00463709⟩

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