Vol. 30, issue 12, article # 1

Abstract:

The results of numerical simulation of self-action in air of a sequence of ultrashort laser pulses with a carrier in the near and mid-IR regions are presented. We show that the use of a 10.6-mm pulse train allows appreciable elongation of the plasma channel generated during pulse filamentation and enhancement of its spatial connectivity. The filamentation of a submicron pulse train does not visibly change the filamentation region characteristics.

Keywords:

ultrashort laser radiation, pulse self-focusing, laser filamentation, laser plasma, pulse train

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