Concatenation of plasma filaments created in air by femtosecond infrared laser pulses

Stellios Tzortzakis 1 Grégoire Méchain 1 G. Patalano 1 Michel Franco 1 Bernard Prade 1 André Mysyrowicz 1
1 LOA - Laboratoire d'optique appliquée
Abstract : We report the first observation of the attachment of two single plasma filaments created collinearly in the atmosphere by IR femtosecond laser pulses. The linked filamentary structure is electrically conductive and emits sub-THz radiation over its entire length. Concatenation is achieved only for a specific time ordering between the two initial laser pulses. The pulse producing the filament closer to the laser source must be retarded with respect to the other pulse. This special time ordering is attributed to the acceleration of light in a self-guided pulse.
Keywords : filamentation nonlinear optics
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Journal articles
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Submitted on : Saturday, March 13, 2010 - 9:34:23 PM
Last modification on : Wednesday, July 3, 2019 - 10:48:02 AM

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Stellios Tzortzakis, Grégoire Méchain, G. Patalano, Michel Franco, Bernard Prade, et al.. Concatenation of plasma filaments created in air by femtosecond infrared laser pulses. Applied Physics B - Laser and Optics, Springer Verlag, 2003, 76 (5), pp.609-612. ⟨10.1007/s00340-003-1147-1⟩. ⟨hal-00463649⟩

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