Temporal and Angular Resolution of the Ionization-Induced Refraction of a Short Laser Pulse in Helium Gas - ENSTA Paris - École nationale supérieure de techniques avancées Paris Access content directly
Journal Articles Physical Review Letters Year : 1999

Temporal and Angular Resolution of the Ionization-Induced Refraction of a Short Laser Pulse in Helium Gas

P. Chessa
  • Function : Author
F. Dorchies
J. R. Marquès
P. Mora
  • Function : Author

Abstract

The refraction of a short and intense laser pulse focused in helium gas has been studied both experimentally and numerically. Using the time-frequency correspondence of a 120 fs laser pulse linearly chirped to 1.8 ps, the ionization-induced refraction is resolved both temporally and angularly. Two-dimensional numerical simulations are performed to calculate the laser propagation, from the focusing lens to the detector. With such a simulation, we get a quantitative agreement with the experiment, both for the refraction of the chirped pulse and for the ionization-induced blueshifted spectrum of the compressed pulse.
No file

Dates and versions

hal-01165244 , version 1 (18-06-2015)

Identifiers

Cite

P. Chessa, E. de Wispelaere, F. Dorchies, Victor Malka, J. R. Marquès, et al.. Temporal and Angular Resolution of the Ionization-Induced Refraction of a Short Laser Pulse in Helium Gas. Physical Review Letters, 1999, 82 (3), pp.552. ⟨10.1103/PhysRevLett.82.552⟩. ⟨hal-01165244⟩
135 View
0 Download

Altmetric

Share

Gmail Facebook X LinkedIn More