The effect of plasma-core induced self-guiding on phase matching of high-order harmonic generation in gases
| Autor: | Major, Balázs, Kovács, Katalin, Tosa, Valer, Rudawski, Piotr, L'Huillier, Anne, Varjú, Katalin |
|---|---|
| Rok vydání: | 2019 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1364/JOSAB.36.001594 |
| Popis: | 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 as plasma-core induced self-guiding in previous works --- limits the achievable cut-off by regulating the intensity of the laser beam, it provides favorable conditions for phase matching, which is indispensable for high-flux gas high-harmonic 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 spatio-temporally constant fundamental intensity contributes to the constructive build-up of the harmonic field in a broad photon-energy range up to the provided cut-off. Comment: 14 pages, 7 figures |
| Databáze: | arXiv |
| Externí odkaz: |
|