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Numrering	Referens	Omslagsbild	Hitta
1.	Major, Balázs, et al. (författare) Effect of plasma-core-induced self-guiding on phase matching of high-order harmonic generation in gases 2019 Ingår i: Journal of the Optical Society of America B: Optical Physics. - 0740-3224. ; 36:6, s. 1594-1601 Tidskriftsartikel (refereegranskat)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.

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