Amplification of transition-Cherenkov terahertz radiation of femtosecond filament in air
Résumé
The transition-Cherenkov terahertz radiation from a femtosecond laser filament in air is enhanced by three orders of magnitude in the presence of a longitudinal static electric field, while the radiation pattern and the polarization remain the same. An amplified longitudinal electron current inside the filament is responsible for this amplified terahertz emission.
Domaines
Optique [physics.optics]| Origine | Fichiers produits par l'(les) auteur(s) |
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