Spatio-temporal cleaning of a femtosecond laser pulse through interaction with counter-propagating filaments in air
Résumé
We demonstrate spatiotemporal cleaning of a femtosecond laser pulse impinging on two counterpropagating filaments in air. The retroreflected signal essentially has a perfect beam profile. Prepulses present in the incident pulse are also efficiently removed. The performance of the “filament mirror” is explained by a plasma-mediated wave mixing process that can be viewed as a transient three-dimensional hologram.
Domaines
Optique [physics.optics]Origine | Fichiers produits par l'(les) auteur(s) |
---|
Loading...