Multi-terawatt 10 um pulse atmospheric delivery over multiple Rayleigh ranges
Posted on 2017-09-19 - 14:51
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.
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Schuh, Kolja; Panagiotopoulos, Paris; Kolesik, Miroslav; Koch, Stephan; Moloney, Jerome (2017): Multi-terawatt 10 um pulse atmospheric delivery over multiple Rayleigh ranges. Optica Publishing Group. Collection. https://doi.org/10.6084/m9.figshare.c.3865624.v1
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