Acta Optica Sinica, Volume. 21, Issue 12, 1458(2001)
Nonlinear Theory of Filamentation of Intense Laser Beams
Nonlinear evolution of filaments is investigated by taking into consideration of the energy exchange between background and modulational field. It is found that a modulated beam may experience a periodical filamentation. Bespalov Talanov (B T) theory gave the same results of the fastest growing frequency and the cutoff frequency as the nonlinear theory; but a different result of the fastest growth rate. Initially, the modulations grow exponentially, and afterwards, they grow slower than exponential.
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[in Chinese], [in Chinese], [in Chinese], [in Chinese]. Nonlinear Theory of Filamentation of Intense Laser Beams[J]. Acta Optica Sinica, 2001, 21(12): 1458