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Journal articles
Non-thermal desorption/ablation of molecular solids induced by ultra-short soft x-ray pulses
J. Chalupsky
1, 2
L. Juha
1
V. Hájková
1
J. Cihelka
1
L. Vyšín
1, 2
J. Gautier
3
J. Hajdu
4
S. P. Hau-Riege
5
M. Jurek
6
J. Krzywinski
6
R. A. London
5
E. Papalazarou
3
J.B. Pelka
6
G. Rey
3
Stéphane Sebban
3
R. Sobierajski
6
N. Stojanovic
7
K. Tiedtke
7
S. Toleikis
7
T. Tschentscher
7
C. Valentin
3
H. Wabnitz
7
Philippe Zeitoun
3
J.B. Pelka 6
Author
G. Rey 3
Author
Stéphane Sebban 3
Author IdHAL : stephane-sebban
R. Sobierajski 6
Author
1
PALS - Institute of Physics (Na Slovance 2, CZ-182 21 Prague 8 - Czech Republic)
- CAS - Czech Academy of Sciences [Prague] (Národní 3, 117 20 Prague 1 - Czech Republic)
2
CTU - Czech Technical University in Prague (České vysoké učení technické v Praze Zikova 1903/4 166 36 Praha 6 Česká republika - Czech Republic)
3
LOA - Laboratoire d'optique appliquée (828, boulevard des Maréchaux 91762 Palaiseau Cedex - France)
- ENSTA Paris - École Nationale Supérieure de Techniques Avancées (828, boulevard des Maréchaux 91762 Palaiseau Cedex - France)
- X - École polytechnique (École polytechnique, 91128 Palaiseau Cedex - France)
- CNRS - Centre National de la Recherche Scientifique : UMR7639 (France)
4
Laboratory of Molecular Biophysics [Uppsala] (Husargatan 3, 752 37 Uppsala - Sweden)
- Department of Cell and Molecular Biology [Uppsala] (Husargatan 3, 752 37 Uppsala - Sweden)
- Uppsala University (Box 256, SE-751 05 Uppsala - Sweden)
5
LLNL - Lawrence Livermore National Laboratory (7000 East Avenue • Livermore, CA 94550 - United States)
6
Institute of Physics in Poland (Al. Lotników 32/46, PL-02-668 Warsaw - Poland)
7
DESY - Deutsches Elektronen-Synchrotron [Hamburg] (Notkestraße 85 D-22607 Hamburg - Germany)
Abstract : We report the first observation of single-shot soft x-ray laser induced desorption occurring below the ablation threshold in a thin layer of poly (methyl methacrylate) - PMMA. Irradiated by the focused beam from the Free-electron LASer in Hamburg (FLASH) at 21.7nm, the samples have been investigated by atomic-force microscope (AFM) enabling the visualization of mild surface modifications caused by the desorption. A model describing non-thermal desorption and ablation has been developed and used to analyze single-shot imprints in PMMA. An intermediate regime of materials removal has been found, confirming model predictions. We also report below-threshold multiple-shot desorption of PMMA induced by high-order harmonics (HOH) at 32nm. Short-time exposure imprints provide sufficient information about transverse beam profile in HOH's tight focus whereas long-time exposed PMMA exhibits radiation-initiated surface ardening making the beam profile measurement infeasible.
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Journal articles
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https://hal-polytechnique.archives-ouvertes.fr/hal-00508903
Contributor : Thuy Le <>
Submitted on : Friday, August 6, 2010 - 6:15:53 PM
Last modification on : Monday, November 23, 2020 - 12:52:03 PM
Contributor : Thuy Le <>
Submitted on : Friday, August 6, 2010 - 6:15:53 PM
Last modification on : Monday, November 23, 2020 - 12:52:03 PM
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- HAL Id : hal-00508903, version 1
- DOI : 10.1364/OE.17.000208
Citation
J. Chalupsky, L. Juha, V. Hájková, J. Cihelka, L. Vyšín, et al.. Non-thermal desorption/ablation of molecular solids induced by ultra-short soft x-ray pulses. Optics Express, Optical Society of America - OSA Publishing, 2008, 17 (1), pp.208-217. ⟨10.1364/OE.17.000208⟩. ⟨hal-00508903⟩
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