Organizing Multiple Femtosecond Filaments in Air

Details Organizing Multiple Femtosecond Filaments in Air Organizing Multiple Femtosecond Filaments in Air

Jul 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004phrvl..93c5003m&link_type=abstract

Physical Review Letters, vol. 93, Issue 3, id. 035003

Physics

67

Self-Focussing, Channeling, And Filamentation In Plasmas, Wave Propagation, Transmission And Absorption, Beam Trapping, Self-Focusing And Defocusing, Self-Phase Modulation, Dynamics Of Nonlinear Optical Systems, Optical Instabilities, Optical Chaos And Complexity, And Optical Spatio-Temporal Dynamics

Scientific paper

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.PRLTAO0031-9007 83, 2938 (1999)10.1103/PhysRevLett.83.2938

].

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