Desorption mechanisms in PMMA irradiated by high order harmonics

0372549 - FZÚ 2012 RIV US eng C - Konferenční příspěvek (zahraniční konf.)
De Grazia, M. - Merdji, H. - Auguste, T. - Carré, B. - Gaudin, J. - Geoffroy, G. - Guizard, S. - Krejčí, F. - Kuba, J. - Chalupský, J. - Cihelka, Jaroslav - Hájková, Věra - Ledinský, Martin - Juha, Libor
Desorption mechanisms in PMMA irradiated by high order harmonics.
Damage to VUV, EUV, and X-ray Optics III. Bellingham: SPIE, 2011 - (Juha, L.; Bajt, S.; London, R.), 80770L/1-80770L/10. Proceedings of SPIE, 8077. ISBN 9780819486677. ISSN 0277-786X.
[Conference on Damage to VUV, EUV, and X-ray Optics III. Prague (CZ), 18.04.2011-20.04.2011]
Grant CEP: GA AV ČR KAN300100702; GA MŠMT LC510; GA MŠMT(CZ) LC528; GA MŠMT LA08024; GA MŠMT(CZ) ME10046
Výzkumný záměr: CEZ:AV0Z10100523
Klíčová slova: XUV pulses * high order harmonics * PMMA * desorption * chain scission * cross-linking
Kód oboru RIV: BH - Optika, masery a lasery
http://dx.doi.org/ 10.1117/12.890093

The recent development of intense sources in the XUV range (10-100 nm), such as X-ray laser, Free Electron Laser and High order Harmonics (HoH), allows the study of high flux processes and ultra-fast dynamics in various domains. At the SLIC facility of CEA-Saclay, we have built a gas-harmonic beamline to investigate the interaction of intense XUV pulse with solids. High Harmonics of an IR laser (Ti:Sa at 800 nm, 35 fs, 13 mJ/pulse, 1 kHz) are generated in a rare gas cell (Xe). The useful XUV range (40-60 nm) is selected with metallic filters. The harmonic beam is focused with a parabolic mirror to a 10 μm focal spot on sample, leading to a fluence per shot of up to 1 mJ/cm2 (within a typical 10 fs pulse duration). Studies aimed at understanding the damaging mechanisms caused by XUV irradiation on surface of various samples by systematically varying of fluence and exposure time.
Trvalý link: http://hdl.handle.net/11104/0205843