Break-up, coalescence and self-guiding of femtosecond laser pulses in air

Femtosecond laser pulses propagating in air are investigated. For input powers as high as 25 times the self-focusing threshold, the pulses are shown to break up into two spots, which coalesce into a self-guided beam.

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Bibliographic Details
Main Authors: Couairon, A., Berge, L., Tzortzakis, S., Franco, M., Chiron, A., Lamouroux, B., Andre, Y.-B., Prade, B., Mysyrowicz, A.
Format: Conference Proceeding
Language:English
Subjects:
Electron beams
Ionization
Laser beams
Laser modes
Nonlinear optics
Optical propagation
Optical pulses
Power lasers
Pulse modulation
Ultrafast optics
Online Access:Request full text
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Description
Summary:Femtosecond laser pulses propagating in air are investigated. For input powers as high as 25 times the self-focusing threshold, the pulses are shown to break up into two spots, which coalesce into a self-guided beam.
DOI:10.1109/NLO.2000.883653