χ(5) susceptibility stabilizes the propagation of ultrashort laser pulses in air

Details χ(5) susceptibility stabilizes the propagation of ultrashort laser pulses in air χ(5) susceptibility stabilizes the propagation of ultrashort laser pulses in air

Dec 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004phrva..70f1802v&link_type=abstract

Physical Review A, vol. 70, Issue 6, id. 061802

Physics

18

Beam Trapping, Self-Focusing And Defocusing, Self-Phase Modulation, Ultrafast Processes, Optical Pulse Generation And Pulse Compression, Propagation, Transmission, Attenuation, And Radiative Transfer

Scientific paper

The influence of higher-order optical nonlinearities on the self-guiding of femtosecond pulses in the atmosphere is investigated theoretically. χ(5) susceptibility, even small, is shown to significantly affect the propagation dynamics and enhance the robustness of femtosecond filaments by lowering the threshold intensity at which the beam saturates and by enlarging the self-channeling range.

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