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Multi-terawatt 10 μm pulse atmospheric delivery over multiple Rayleigh ranges

Abstract

We predict that long wavelength self-trapped multi-terawatt pulses can be sustained over multiple kilometers in the atmosphere. Unlike filaments, these pulses exhibit low loss propagation and retain most of their launch power at range. A novel mechanism involving an aggregation of weakly linear and nonlinear cumulative optical responses is shown to be responsible and is dominated by an ultrafast dynamical lensing resulting from a field intensity driven many-body Coulomb mediated free electron polarization associated with spatially separated species in the gas. An initial few picosecond pulse can compress down to 140 fs over multiple kilometers.

© 2017 Optical Society of America

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Supplementary Material (2)

NameDescription
Visualization 1       Visualization of the evolution of the on-axis electric field vs. z.
Visualization 2       Visualization of the evolution of the spatio-temporal intensity vs. z.

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