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Few-cycle laser-pulse collapse in Kerr media: The role of group-velocity dispersion and X-wave formation
| Content Provider | Semantic Scholar |
|---|---|
| Author | Faccio, Daniele Clerici, Matteo Averchi, Alessandro Lotti, Antonio Jedrkiewicz, Ottavia Dubietis, Audrius Tamošauskas, Gintaras Couairon, Arnaud Bragheri, Francesca Papazoglou, Dimitrios G. Tzortzakis, Stelios Trapani, Paolo |
| Copyright Year | 2008 |
| Abstract | We study ultrashort laser-pulse propagation and filamentation dynamics in dispersive Kerr media. We identify the regime for which the filamentation threshold $({P}_{\mathrm{th}})$ is considerably higher than the critical power $({P}_{\mathrm{cr}})$ for monochromatic beam collapse in pure Kerr media. In particular, we compare the threshold for the formation of filaments with that for the formation of $\mathsf{X}$-waves. At powers ${P}_{\mathrm{cr}}lPl{P}_{\mathrm{th}}$, self-focusing is arrested by group-velocity dispersion, and no filaments or $\mathsf{X}$-waves are formed. At $P\ensuremath{\geqslant}{P}_{\mathrm{th}}$, we observe $\mathsf{X}$-wave formation and a weak filamentation regime. At $P⪢{P}_{\mathrm{th}}$, we observe both $\mathsf{X}$-waves and fully formed filaments. |
| Starting Page | 033826 |
| Ending Page | 033826 |
| Page Count | 1 |
| File Format | PDF HTM / HTML |
| DOI | 10.1103/PhysRevA.78.033826 |
| Volume Number | 78 |
| Alternate Webpage(s) | http://extremelight.eps.hw.ac.uk/publications/PRA-20fs_filamentation-Faccio(2008).pdf |
| Alternate Webpage(s) | https://doi.org/10.1103/PhysRevA.78.033826 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
