1.
Opt Express
; 32(2): 1585-1594, 2024 Jan 15.
Artigo
em Inglês
| MEDLINE
| ID: mdl-38297707
RESUMO
Spectral splitting of high harmonic radiation is observed when a gas target is irradiated with a high-energy laser pulse, having an extreme amount of frequency chirp. The phenomenon, which may be observed only by using a multi-TW laser system, originates from the temporal evolution of the phase-matching conditions. We illustrate how these conditions are mapped to the spectral domain, and present experimental evidence which is validated by our model.