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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 LU ; L'Huillier, Anne LU orcid and Varjú, Katalin LU (2019) In Journal of the Optical Society of America B: Optical Physics 36(6). p.1594-1601
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... (More)

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.

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author
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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of the Optical Society of America B: Optical Physics
volume
36
issue
6
pages
8 pages
publisher
Optical Society of America
external identifiers
  • scopus:85069581501
ISSN
0740-3224
DOI
10.1364/JOSAB.36.001594
language
English
LU publication?
yes
id
dc16565b-a255-405d-97bf-01a9bb0279c7
date added to LUP
2019-08-09 15:54:25
date last changed
2022-04-26 03:36:40
@article{dc16565b-a255-405d-97bf-01a9bb0279c7,
  abstract     = {{<p>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.</p>}},
  author       = {{Major, Balázs and Kovács, Katalin and Tosa, Valer and Rudawski, Piotr and L'Huillier, Anne and Varjú, Katalin}},
  issn         = {{0740-3224}},
  language     = {{eng}},
  number       = {{6}},
  pages        = {{1594--1601}},
  publisher    = {{Optical Society of America}},
  series       = {{Journal of the Optical Society of America B: Optical Physics}},
  title        = {{Effect of plasma-core-induced self-guiding on phase matching of high-order harmonic generation in gases}},
  url          = {{http://dx.doi.org/10.1364/JOSAB.36.001594}},
  doi          = {{10.1364/JOSAB.36.001594}},
  volume       = {{36}},
  year         = {{2019}},
}