Terahertz Radiation Source in Air Based on Bifilamentation of Femtosecond Laser Pulses
Résumé
A new terahertz (THz) source in air based on the bifilamentation of femtosecond laser pulses is reported. This THz radiation is 1 order of magnitude more intense than the transition-Cherenkov THz emission from femtosecond laser filaments reported recently and shows different angular and polarization properties. We attribute it to the emission from a bimodal transmission line created by two plasma filaments.
Domaines
Optique [physics.optics]| Origine | Fichiers produits par l'(les) auteur(s) |
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