Dr
Vytautas Jukna
(LOA, ENSTA-ParisTech, CNRS, Ecole Polytechnique, Université Paris Saclay, 91762 Palaiseau cedex, France)
16/10/2015, 08:30
Presentations
A novel concept for global atmosphere monitoring was studied and will be presented. The concept relies on laser pulse filamentation in the atmosphere from a powerful laser embarked in an Earth-orbiting satellite. Filamentation leads to white light generation. Light reflected by different species of air at different altitudes is collected by a space-borne receiver and analyzed. The concept is...
Prof.
Andre Mysyrowicz
(LOA ENSTA école polytechnique Palaiseau)
16/10/2015, 08:50
Presentations
A short and intense IR femtosecond laser pulse launched in atmosphere undergoes filamentation, with the emergence of a long thin plasma column in the wake of the laser pulse. We will show that this plasma column acts as an efficient optical amplifier in the UV and can form a cavity-less laser. The origin of this optical gain will be discussed. Depending on the polarization of the femtosecond...
