Kilometer-range nonlinear propagation of femtosecond laser pulses

Details Kilometer-range nonlinear propagation of femtosecond laser pulses Kilometer-range nonlinear propagation of femtosecond laser pulses

Mar 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004phrve..69c6607r&link_type=abstract

Physical Review E, vol. 69, Issue 3, id. 036607

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Applications

79

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

Scientific paper

Ultrashort, high-power laser pulses propagating vertically in the atmosphere have been observed over more than 20 km using an imaging 2-m astronomical telescope. This direct observation in several wavelength bands shows indications for filament formation at distances as far as 2 km in the atmosphere. Moreover, the beam divergence at 5 km altitude is smaller than expected, bearing evidence for whole-beam parallelization about the nonlinear focus. We discuss implications for white-light Lidar applications.

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