Enhancement of laser plasma extreme ultraviolet emission by shockwave-laser interaction

Autor:	René de Bruijn, Vladimir Novikov, Serguei V. Zakharov, Fred Bijkerk, Konstantin N Koshelev
Rok vydání:	2005
Předmět:	Physics business.industry Extreme ultraviolet lithography chemistry.chemical_element Plasma Condensed Matter Physics Laser law.invention Pulse (physics) Xenon Optics chemistry law Extreme ultraviolet Radiative transfer Plasma diagnostics Atomic physics business
Zdroj:	Physics of Plasmas. 12:042701
ISSN:	1089-7674 1070-664X
DOI:	10.1063/1.1857914
Popis:	A double laser pulse heating scheme has been applied to generate plasmas with enhanced emission in the extreme ultraviolet (EUV). The plasmas were produced by focusing two laser beams (prepulse and main pulse) with a small spatial separation between the foci on a xenon gas jet target. Prepulses with ps-duration were applied to obtain high shockwave densities, following indications of earlier published results obtained using ns prepulses. EUV intensities around 13.5 nm and in the range 5–20 nm were recorded, and a maximum increase in intensity exceeding 2 was measured at an optimal delay of 140 ns between prepulse and main pulse. The gain in intensity is explained by the interaction of the shockwave produced by the prepulse with the xenon in the beam waist of the main pulse. Extensive simulation was done using the radiative magnetohydrodynamic code Z*.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::443046983fe1fcb9729575c7a01a220e https://doi.org/10.1063/1.1857914 Zobrazit plný text záznamu