Applied Sciences (Nov 2017)
Micro-Focusing of Broadband High-Order Harmonic Radiation by a Double Toroidal Mirror
- Hélène Coudert-Alteirac,
- Hugo Dacasa,
- Filippo Campi,
- Emma Kueny,
- Balázs Farkas,
- Fabian Brunner,
- Sylvain Maclot,
- Bastian Manschwetus,
- Hampus Wikmark,
- Jan Lahl,
- Linnea Rading,
- Jasper Peschel,
- Balázs Major,
- Katalin Varjú,
- Guillaume Dovillaire,
- Philippe Zeitoun,
- Per Johnsson,
- Anne L’Huillier,
- Piotr Rudawski
Affiliations
- Hélène Coudert-Alteirac
- Department of Physics, Lund University, P. O. Box 118, SE-22100 Lund, Sweden
- Hugo Dacasa
- Laboratoire d’Optique Applique, ENSTA ParisTech, École Polytechnique, CNRS-UMR7639, Chemin de la Hunière, 91761 Palaiseau CEDEX, France
- Filippo Campi
- Department of Physics, Lund University, P. O. Box 118, SE-22100 Lund, Sweden
- Emma Kueny
- Department of Physics, Lund University, P. O. Box 118, SE-22100 Lund, Sweden
- Balázs Farkas
- ELI-ALPS, ELI-HU Non-Profit Ltd., Dugonics tr 13, 6720 Szeged, Hungary
- Fabian Brunner
- Department of Physics, Lund University, P. O. Box 118, SE-22100 Lund, Sweden
- Sylvain Maclot
- Department of Physics, Lund University, P. O. Box 118, SE-22100 Lund, Sweden
- Bastian Manschwetus
- Department of Physics, Lund University, P. O. Box 118, SE-22100 Lund, Sweden
- Hampus Wikmark
- Department of Physics, Lund University, P. O. Box 118, SE-22100 Lund, Sweden
- Jan Lahl
- Department of Physics, Lund University, P. O. Box 118, SE-22100 Lund, Sweden
- Linnea Rading
- Department of Physics, Lund University, P. O. Box 118, SE-22100 Lund, Sweden
- Jasper Peschel
- Department of Physics, Lund University, P. O. Box 118, SE-22100 Lund, Sweden
- Balázs Major
- ELI-ALPS, ELI-HU Non-Profit Ltd., Dugonics tr 13, 6720 Szeged, Hungary
- Katalin Varjú
- ELI-ALPS, ELI-HU Non-Profit Ltd., Dugonics tr 13, 6720 Szeged, Hungary
- Guillaume Dovillaire
- Imagine Optic, 18 Rue Charles de Gaulle, 91400 Orsay, France
- Philippe Zeitoun
- Laboratoire d’Optique Applique, ENSTA ParisTech, École Polytechnique, CNRS-UMR7639, Chemin de la Hunière, 91761 Palaiseau CEDEX, France
- Per Johnsson
- Department of Physics, Lund University, P. O. Box 118, SE-22100 Lund, Sweden
- Anne L’Huillier
- Department of Physics, Lund University, P. O. Box 118, SE-22100 Lund, Sweden
- Piotr Rudawski
- Department of Physics, Lund University, P. O. Box 118, SE-22100 Lund, Sweden
- DOI
- https://doi.org/10.3390/app7111159
- Journal volume & issue
-
Vol. 7,
no. 11
p. 1159
Abstract
We present an optical system based on two toroidal mirrors in a Wolter 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.
Keywords
- high-order harmonic generation
- ultrafast nonlinear optics
- extreme ultraviolet
- XUV focusing
- wavefront sensing
- attosecond pulses
