Abstract
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 language | English |
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| Pages (from-to) | 1565-1570 |
| Number of pages | 6 |
| Journal | Optics Express |
| Volume | 16 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 4 Feb 2008 |