Spatial profiles of high-order harmonics generated by a femtosecond Cr:LiSAF laser

Autor:	Todd Ditmire, K. S. Budil, Pascal Salières, Anne L'Huillier, Michael D. Perry
Rok vydání:	1994
Předmět:	Physics Argon business.industry chemistry.chemical_element Condensed Matter Physics Plateau (mathematics) Laser Atomic and Molecular Physics and Optics law.invention Neon Optics chemistry law Harmonics Femtosecond High harmonic generation Cutoff Atomic physics business
Zdroj:	Journal of Physics B: Atomic, Molecular and Optical Physics. 27:L217-L222
ISSN:	1361-6455 0953-4075
DOI:	10.1088/0953-4075/27/9/006
Popis:	Reports the angular distributions of high-order harmonic radiation generated in neon and in argon using a 140 fs Cr:LiSAF laser system. The profiles show an evolution from Gaussian to near flat-top. No substructure is observed except at the highest intensity in a completely ionized gas. The divergence of the harmonics is found to depend essentially on whether they belong to the plateau or to the cutoff. It is approximately constant in the plateau, of the order of 15 mrad and decreases from 15 mrad to 6 mrad in the cutoff region.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::baf42f125ddc8159f3773fb4973f82ce https://doi.org/10.1088/0953-4075/27/9/006 Zobrazit plný text záznamu