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Journal Articles Appl.Sciences Year : 2017

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

Hélène Coudert-Alteirac
Filippo Campi
  • Function : Author
Emma Kueny
  • Function : Author
Balázs Farkas
  • Function : Author
Fabian Brunner
Sylvain Maclot
Bastian Manschwetus
  • Function : Author
Hampus Wikmark
Jan Lahl
Linnea Rading
  • Function : Author
Jasper Peschel
Balázs Major
  • Function : Author
Katalin Varjú
  • Function : Author
Guillaume Dovillaire
  • Function : Author
Philippe Zeitoun
  • Function : Author
  • PersonId : 750377
  • IdHAL : fictif-zap
Per Johnsson
Anne L'Huillier
  • Function : Author
Piotr Rudawski

Abstract

We present an optical system based on two toroidal mirrors in a Wolter configuration to focus broadband 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$\times$4.0 $\mu$m$^2$ full width at half maximum, which is consistent with ray-tracing simulations that predict a minimum size of 3.0$\times$3.2 $\mu$m$^2$. 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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Dates and versions

hal-01669428 , version 1 (05-12-2023)

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Hélène Coudert-Alteirac, Hugo Dacasa, Filippo Campi, Emma Kueny, Balázs Farkas, et al.. Micro-focusing of broadband high-order harmonic radiation by a double toroidal mirror. Appl.Sciences, 2017, 7 (11), pp.1159. ⟨10.3390/app7111159⟩. ⟨hal-01669428⟩
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