Cerenkov THz emission from femtosecond filamentation in air

Aurélien Houard,Ciro D'Amico,Michel Franco,Bernard Prade,A. Mysyrowicz,Arnaud Couairon,V. T. Tikhonchuk

Cerenkov THz emission from femtosecond filamentation in air

2007

Aurélien Houard
Ciro D'Amico
Michel Franco
Bernard Prade
A. Mysyrowicz
Arnaud Couairon
V. T. Tikhonchuk

We measure a strong forward THz emission from femtosecond filaments in air and we attribute it to a Cerenkov emission from the ionization front moving at superluminal velocity.

Keywords:

Particle detector
Plasma
Terahertz radiation
Ionization
Polarization (waves)
Femtosecond
Femtosecond pulse shaping
Optics
Nonlinear optics
Physics
Filamentation
Superluminal motion
Optoelectronics

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