Skip to Main content Skip to Navigation
Journal articles

High-order harmonic generation in an active grating

C. Chappuis 1, 2 D. Bresteau 1, 2 T. Auguste 1, 2 O. Gobert 1, 3 T. Ruchon 1, 2
2 ATTO - Attophysique
IRAMIS - Institut Rayonnement Matière de Saclay, LIDyl - Laboratoire Interactions, Dynamiques et Lasers (ex SPAM)
3 PHI - Physique à Haute Intensité
IRAMIS - Institut Rayonnement Matière de Saclay, LIDyl - Laboratoire Interactions, Dynamiques et Lasers (ex SPAM)
Abstract : We study theoretically and experimentally high-order harmonic generation (HHG) using two noncollinear driving fields focused in gases. We show that these two fields form a nonstationary blazed active grating in the generation medium. The intensity and phase structure of this grating rule the far-field properties of the emission, such as the relative amplitude of the diffraction orders. Full macroscopic calculations and experiments support this wave-based picture of the process, complementing and extending its standard “photon” picture. This insight into the HHG process allows us to envision structuration schemes to convert femtosecond lasers to attosecond pulses with increased efficiency.
Complete list of metadatas

https://hal-cea.archives-ouvertes.fr/cea-02096281
Contributor : Caroline Lebe <>
Submitted on : Thursday, April 11, 2019 - 11:25:14 AM
Last modification on : Monday, February 10, 2020 - 6:14:03 PM

Links full text

Identifiers

Citation

C. Chappuis, D. Bresteau, T. Auguste, O. Gobert, T. Ruchon. High-order harmonic generation in an active grating. Physical Review A, American Physical Society, 2019, 99 (3), ⟨10.1103/PhysRevA.99.033806⟩. ⟨cea-02096281⟩

Share

Metrics

Record views

73