Effect of plasma-core-induced self-guiding on phase matching of high-order harmonic generation in gases

Balázs Major, Katalin Kovács, Valer Tosa, Piotr Rudawski, Anne L'Huillier, K. Varjú

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

In this work, we numerically study a self-guiding process in which ionization plays a dominant role and analyze its effect on high-order harmonic generation (HHG) in gases. Although this type of self-guiding-termed "plasmacore- induced self-guiding" in previous works-limits the achievable cutoff by regulating the intensity of the laser beam, it provides favorable conditions for phase matching, which is indispensable for high-flux-gas highharmonic sources. To underline the role of self-guiding in efficient HHG, we investigate the time-dependent phase-matching conditions in the guided beam and show how the spatiotemporally constant fundamental intensity contributes to the constructive buildup of the harmonic field in a broad photon energy range up to the provided cutoff.

Original languageEnglish
Pages (from-to)1594-1601
Number of pages8
JournalJournal of the Optical Society of America B: Optical Physics
Volume36
Issue number6
DOIs
Publication statusPublished - Jan 1 2019

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phase matching
harmonic generations
cut-off
gases
laser beams
harmonics
ionization
photons
energy

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Atomic and Molecular Physics, and Optics

Cite this

Effect of plasma-core-induced self-guiding on phase matching of high-order harmonic generation in gases. / Major, Balázs; Kovács, Katalin; Tosa, Valer; Rudawski, Piotr; L'Huillier, Anne; Varjú, K.

In: Journal of the Optical Society of America B: Optical Physics, Vol. 36, No. 6, 01.01.2019, p. 1594-1601.

Research output: Contribution to journalArticle

Major, Balázs ; Kovács, Katalin ; Tosa, Valer ; Rudawski, Piotr ; L'Huillier, Anne ; Varjú, K. / Effect of plasma-core-induced self-guiding on phase matching of high-order harmonic generation in gases. In: Journal of the Optical Society of America B: Optical Physics. 2019 ; Vol. 36, No. 6. pp. 1594-1601.
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