Complex dynamics of femtosecond terawatt laser pulses in air
作者： Bin Qiao , CH Lai , CT Zhou , XT He , Xingang Wang
DOI: 10.1063/1.2819611
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摘要: Complex dynamics of femtosecond terawatt laser pulses in air is investigated theoretically and numerically by considering both χ(5) susceptibility multiphoton ionization. Our investigation shows that these two high-order nonlinearities, acting as a Hamiltonian perturbation, can destroy homoclinic orbit connection phase trajectory result spatial chaos complex pattern wave field. Due to the chaotic behavior field, filamentation appears when intensity increases close ionization threshold.
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