Focal dynamics of multiple filaments: Microscopic imaging and reconstruction

@article{Kiran2010FocalDO,
  title={Focal dynamics of multiple filaments: Microscopic imaging and reconstruction},
  author={P. Prem Kiran and Suman Bagchi and Siva Rama Krishnan and Cord L. Arnold and G Ravindra Kumar and Arnaud Couairon},
  journal={Physical Review A},
  year={2010},
  volume={82},
  pages={013805}
}
We observe the complete dynamics of the propagation of very intense, femtosecond laser pulses in air under tight focusing conditions via direct imaging of the entire interaction zone. The whole life history of the focused pulses is then reconstructed by means of numerical simulations. We show that beam breakup leads to a dual-rate increase in filament numbers with laser power. Linearly and circularly polarized pulses give rise to beam breakup and fusion governed by external focusing conditions… Expand

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