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

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift

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.

Detaljer

Författare
  • Balázs Major
  • Katalin Kovács
  • Valer Tosa
  • Piotr Rudawski
  • Anne L'Huillier
  • Katalin Varjú
Enheter & grupper
Externa organisationer
  • ELI-HU Non-profit Ltd
  • University of Szeged
  • National Institute for Research and Development of Isotopic and Molecular Technologies Cluj-Napoca
Forskningsområden

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Atom- och molekylfysik och optik
Originalspråkengelska
Sidor (från-till)1594-1601
Antal sidor8
TidskriftJournal of the Optical Society of America B: Optical Physics
Volym36
Utgåva nummer6
StatusPublished - 2019 jun
PublikationskategoriForskning
Peer review utfördJa