http://www.cnr.it/ontology/cnr/individuo/prodotto/ID302260
Micro-focusing of attosecond pulses by grazing-incidence toroidal mirrors (Articolo in rivista)
- Type
- Label
- Micro-focusing of attosecond pulses by grazing-incidence toroidal mirrors (Articolo in rivista) (literal)
- Anno
- 2013-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1364/OE.21.013040 (literal)
- Alternative label
Poletto, L.; Frassetto, F.; Calegari, F.; Anumula, S.; Trabattoni, A.; Nisoli, M. (2013)
Micro-focusing of attosecond pulses by grazing-incidence toroidal mirrors
in Optics express
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Poletto, L.; Frassetto, F.; Calegari, F.; Anumula, S.; Trabattoni, A.; Nisoli, M. (literal)
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- Pagina fine
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- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- Natl Council Res Italy; Polytechnic University of Milan (literal)
- Titolo
- Micro-focusing of attosecond pulses by grazing-incidence toroidal mirrors (literal)
- Abstract
- The design of optical systems for micro-focusing of extreme-ultraviolet (XUV) attosecond pulses through grazing-incidence toroidal mirrors is presented. Aim of the proposed configuration is to provide a micro-focused image through a high demagnification of the XUV source with the following characteristics: i) almost negligible aberrations; ii) long exit arm to easily accommodate at the output the experimental setups required for the applications of the focused attosecond pulses; iii) possibility to have an intermediate region where the XUV beam is collimated, in order to insert a plane split-mirror for the generation of two XUV pulse replicas to be used in a XUV-pump/XUV-probe setup. We present the analytical and numerical study of two optical configurations characterized by two sections based on the use of toroidal mirrors. The first section provides a demagnified image of the source in an intermediate focus that is free from defocusing but has a large coma aberration. The second section consists of a relay mirror that is mounted in Z-shaped geometry with respect to the previous one, in order to give a stigmatic image with a coma that is opposite to that provided by the first section. An example is provided to demonstrate the capability to achieve spot sizes in the 5-15 mu m range with a demagnification higher than 10 in a compact envelope. (C) 2013 Optical Society of America (literal)
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