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Micro-focusing of broadband high-order harmonic radiation by a double toroidal mirror

Coudert-Alteirac, Hélène LU ; Dacasa, Hugo; Campi, Filippo LU ; Kueny, Emma; Farkas, Balázs; Brunner, Fabian LU ; Maclot, Sylvain LU ; Manschwetus, Bastian LU ; Wikmark, Hampus LU and Lahl, Jan LU , et al. (2017) In Applied Sciences (Switzerland) 7(11).
Abstract

We present an optical system based on two toroidal mirrors in aWolter configuration to focus broadband extreme ultraviolet (XUV) radiation. Optimization of the focusing optics alignment is carried out with the aid of an XUV wavefront sensor. Back-propagation of the optimized wavefront to the focus yields a focal spot of 3.6 × 4.0 μm2 full width at half maximum, which is consistent with ray-tracing simulations that predict a minimum size of 3.0 × 3.2 μm2. This work is important for optimizing the intensity of focused high-order harmonics in order to reach the nonlinear interaction regime.

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Contribution to journal
publication status
published
subject
keywords
Attosecond pulses, Extreme ultraviolet, High-order harmonic generation, Ultrafast nonlinear optics, Wavefront sensing, XUV focusing
in
Applied Sciences (Switzerland)
volume
7
issue
11
publisher
Multidisciplinary Digital Publishing Institute (MDPI)
external identifiers
  • scopus:85033672493
  • wos:000416794600058
DOI
10.3390/app7111159
language
English
LU publication?
yes
id
8877e628-a859-4677-9b02-8b3256c311b7
date added to LUP
2017-11-24 08:14:18
date last changed
2018-01-16 13:26:28
@article{8877e628-a859-4677-9b02-8b3256c311b7,
  abstract     = {<p>We present an optical system based on two toroidal mirrors in aWolter configuration to focus broadband extreme ultraviolet (XUV) radiation. Optimization of the focusing optics alignment is carried out with the aid of an XUV wavefront sensor. Back-propagation of the optimized wavefront to the focus yields a focal spot of 3.6 × 4.0 μm<sup>2</sup> full width at half maximum, which is consistent with ray-tracing simulations that predict a minimum size of 3.0 × 3.2 μm<sup>2</sup>. This work is important for optimizing the intensity of focused high-order harmonics in order to reach the nonlinear interaction regime.</p>},
  articleno    = {1159},
  author       = {Coudert-Alteirac, Hélène and Dacasa, Hugo and Campi, Filippo and Kueny, Emma and Farkas, Balázs and Brunner, Fabian and Maclot, Sylvain and Manschwetus, Bastian and Wikmark, Hampus and Lahl, Jan and Rading, Linnea and Peschel, Jasper and Major, Balázs and Varjú, Katalin and Dovillaire, Guillaume and Zeitoun, Philippe and Johnsson, Per and L'Huillier, Anne and Rudawski, Piotr},
  keyword      = {Attosecond pulses,Extreme ultraviolet,High-order harmonic generation,Ultrafast nonlinear optics,Wavefront sensing,XUV focusing},
  language     = {eng},
  month        = {11},
  number       = {11},
  publisher    = {Multidisciplinary Digital Publishing Institute (MDPI)},
  series       = {Applied Sciences (Switzerland)},
  title        = {Micro-focusing of broadband high-order harmonic radiation by a double toroidal mirror},
  url          = {http://dx.doi.org/10.3390/app7111159},
  volume       = {7},
  year         = {2017},
}