2021/11/17 by Balázs Major, Katalin Varjú · 14 citations
Engineering · Mathematics · Physics and Astronomy · #Acoustics #Advanced Fiber Laser Technologies #Applied mathematics #Combustion and flame dynamics #Economics #Harmonic #Laser-Matter Interactions and Applications #Materials science #Mathematics #Order (exchange) #Physics #physics.optics
paper · pdf · doi:10.1088/1361-6455/ac3fbe
published in Journal of Physics B Atomic Molecular and Optical Physics 54(22), 224002 (IOP Publishing) · 20 pages, 5 figures, corrected Fig. 3(b) label
openalex publication_date 2021/11/17 · openalex created_date 2021/12/31 · arxiv created 2022/01/06 · arxiv updated 2022/01/07 · openalex updated_date 2026/08/05
Abstract We report on an extended version of the one-dimensional model proposed by Constant et al (1999 Phys. Rev. Lett. 82 1668) to study phase matching of high-order harmonic generation in absorbing and dispersive medium. The model—expanded from zeroth to first order—can be used with media having a pressure profile varying linearly with propagation length. Based on the new formulas, the importance of having a generation medium that ends abruptly with a steep pressure gradient for achieving high flux is highlighted. In addition to further rule-of-thumb guidelines for harmonic-flux optimization, it is shown that having a steep increase of pressure in the beginning of the medium increases harmonic flux, while it also decreases the required medium length to reach the absorption-limited maximum.