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Spatial filtering of high order harmonics by an OFI plasma amplifier
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SYSNO ASEP 0334252 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Spatial filtering of high order harmonics by an OFI plasma amplifier Title Prostorové filtrování vysokých harmonik v OFI plazmatickém zesilovači Author(s) Goddet, J.P. (FR)
Sebban, S. (FR)
Zeitoun, P. (FR)
Gautier, J. (FR)
Valentin, C. (FR)
Tissandier, F. (FR)
Marchenko, T. (FR)
Lambert, G. (FR)
Nejdl, Jaroslav (FZU-D) RID, ORCID
Cros, B. (FR)
Maynard, G. (FR)
Robillard, B. (FR)
Mocek, Tomáš (FZU-D) RID, ORCID, SAI
Kozlová, Michaela (FZU-D) RID, ORCID
Jakubczak, Krzysztof (FZU-D)Number of authors 15 Source Title X-Ray Lasers 2008. - Dordrecht : Springer, 2009 / Ciaran L. ; Riley D - ISBN 978-1-4020-9923-6 Pages s. 153-160 Number of pages 9 s. Action International Conference on X-Ray Lasers /11th./ Event date 17.08.2008-22.08.2008 VEvent location Belfast Country GB - United Kingdom Event type WRD Language eng - English Country NL - Netherlands Keywords spatial filtering ; x-ray laser ; seeding ; high-order harmonic generation Subject RIV BH - Optics, Masers, Lasers CEZ AV0Z10100523 - FZU-D (2005-2011) Annotation It is now possible to produce a 10 Hz soft x-ray laser beam having very high optical qualities. The solution consists in seeding an optical-field-ionized population inverted plasma amplifier with the 25th harmonic of an infrared laser. This concept was successfully realized in LOA in 2004 and an extensive investigation of the source has been recently performed. Indeed we demonstrate the first diffraction-limited laser beam in the soft x-ray spectral range. This laser beam at a central wavelength of 32.8 nm, emitted with a divergence of 0.67 mrad at a repetition rate of 10 Hz. The beam exhibits a regular Gaussian spatial profile, and wavefront distortions smaller than λ/17. A theoretical analysis of these results shows that this high beam quality is due to spatial filtering of the seed beam by the plasma amplifier aperture. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2010
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