Ultrashort laser pulse filamentation from spontaneous X Wave formation in air

Daniele Faccio, Alessandro Averchi, Antonio Lotti, Paolo Di Trapani, Arnaud Couairon, Dimitris Papazoglou, Stelios Tzortzakis

Research output: Contribution to journalArticlepeer-review

61 Citations (Scopus)


The description of ultrashort laser pulse filamentation in condensed media as a spontaneous formation of X waves is shown to apply also to filaments generated in air. Within this framework, a simple explanation is brought for several features of the filament such as the subdiffractive propagation and the energy flux from the weakly localized tails of the X-waves to the intense core. (c) 2008 Optical Society of America.

Original languageEnglish
Pages (from-to)1565-1570
Number of pages6
JournalOptics Express
Issue number3
Publication statusPublished - 4 Feb 2008

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