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Organizing multiple femtosecond filaments in air

Abstract : We show that it is possible to organize regular filamentation patterns in air by imposing either strong field gradients or phase distortions in the input-beam profile of an intense femtosecond laser pulse. A comparison between experiments and 3+1 dimensional numerical simulations confirms this concept and shows for the first time that a control of the transport of high intensities over long distances may be achieved by forcing this well ordered propagation regime. In this case, deterministic effects prevail in multiple femtosecond filamentation, and no transition to the optical turbulence regime is obtained [Mlejnek et al., Phys. Rev. Lett. 83, 2938 (1999)].
keyword : filamentation
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Contributor : Aurélien Houard Connect in order to contact the contributor
Submitted on : Saturday, March 13, 2010 - 8:55:05 PM
Last modification on : Wednesday, May 11, 2022 - 3:22:04 PM




Grégoire Méchain, Arnaud Couairon, Michel A. Franco, Bernard Prade, André Mysyrowicz. Organizing multiple femtosecond filaments in air. Physical Review Letters, 2004, 93 (3), pp.035003. ⟨10.1103/PhysRevLett.93.035003⟩. ⟨hal-00463641⟩



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