Spectral splitting in phase mismatched harmonics

Raz Halifa Levi*, Ori Ildis, Assaf Levanon, Avner Fleischer, Alon Bahabad, Ishay Pomerantz

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


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.

Original languageEnglish
Pages (from-to)1585-1594
Number of pages10
JournalOptics Express
Issue number2
StatePublished - 15 Jan 2024


FundersFunder number
Ministry of Science, Technology and Space3-16815


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