Terahertz radiation source in air based on bifilamentation of femtosecond laser pulses.
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.
Liu
Y
Y
Laboratoire d'Optique Appliquée, ENSTA, Ecole Polytechnique, Teramobile project, CNRS UMR 7639, Palaiseau, 91761, France.
Houard
A
A
Prade
B
B
Akturk
S
S
Mysyrowicz
A
A
Tikhonchuk
V T
VT