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Spot size characterization of focused non-Gaussian X-ray laser beams
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SYSNO ASEP 0359300 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Spot size characterization of focused non-Gaussian X-ray laser beams Author(s) Chalupský, Jaromír (FZU-D) RID, ORCID
Krzywinski, J. (US)
Juha, Libor (FZU-D) RID, ORCID, SAI
Hájková, Věra (FZU-D) RID, ORCID
Cihelka, Jaroslav (FZU-D)
Burian, Tomáš (FZU-D) RID, ORCID
Vyšín, Luděk (FZU-D) RID, ORCID
Gaudin, J. (DE)
Gleeson, A. (GB)
Jurek, M. (PL)
Khorsand, A.R. (NL)
Klinger, D. (PL)
Wabnitz, H. (DE)
Sobierajski, R. (PL)
Störmer, M. (DE)
Tiedtke, K. (DE)
Toleikis, S. (DE)Source Title Optics Express. - : Optical Society of America - ISSN 1094-4087
Roč. 18, č. 26 (2010), s. 27836-27845Number of pages 10 s. Language eng - English Country US - United States Keywords X-ray laser ; free-electron laser ; beam characterization ; ablation Subject RIV BH - Optics, Masers, Lasers R&D Projects KAN300100702 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) LC510 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) LC528 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) GAP208/10/2302 GA ČR - Czech Science Foundation (CSF) LA08024 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) IAAX00100903 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) ME10046 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) CEZ AV0Z10100523 - FZU-D (2005-2011) UT WOS 000285584200115 DOI 10.1364/OE.18.027836 Annotation We present a new technique for the characterization of non-Gaussian laser beams which cannot be described by an analytical formula. As a generalization of the beam spot area we apply and refine the definition of so called effective area (A(eff)) [1] in order to avoid using the full-width at half maximum (FWHM) parameter which is inappropriate for non-Gaussian beams. Furthermore, we demonstrate a practical utilization of our technique for a femtosecond soft X-ray free-electron laser. The ablative imprints in poly(methyl methacrylate) - PMMA and amorphous carbon (a-C) are used to characterize the spatial beam profile and to determine the effective area. Two procedures of the effective area determination are presented in this work. An F-scan method, newly developed in this paper, appears to be a good candidate for the spatial beam diagnostics applicable to lasers of various kinds. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2012
Number of the records: 1