Effect of plasma-core-induced self-guiding on phase matching of high-order harmonic generation in gases
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 "plasma-core-induced self-guiding" in previous works-limits the achievable...
Elmentve itt :
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| Dokumentumtípus: | Cikk |
| Megjelent: |
2019
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| Sorozat: | JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B: OPTICAL PHYSICS
36 No. 6 |
| doi: | 10.1364/JOSAB.36.001594 |
| mtmt: | 30740939 |
| Online Access: | http://publicatio.bibl.u-szeged.hu/17181 |
| Tartalmi kivonat: | 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 "plasma-core-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. (c) 2019 Optical Society of America |
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| Terjedelem/Fizikai jellemzők: | 1594-1601 |
| ISSN: | 0740-3224 |