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Generation of periodic structures on SiC upon laser plasma XUV/NIR radiations

Published online by Cambridge University Press:  06 August 2013

L. Gemini*
Affiliation:
FNSPE, Czech Technical University in Prague, Prague, Czech Republic
D. Margarone
Affiliation:
ELI Beamlines Project, Institute of Physics of the ASCR, Prague, Czech Republic
S. Trusso
Affiliation:
CNR-IPCF, Istituto per i Processi Chimico-Fisici, Messina, Italy
L. Juha
Affiliation:
Institute of Physics of the ASCR, Prague, Czech Republic
J. Limpouch
Affiliation:
FNSPE, Czech Technical University in Prague, Prague, Czech Republic ELI Beamlines Project, Institute of Physics of the ASCR, Prague, Czech Republic
T. Mocek
Affiliation:
HiLASE Project, Institute of Physics of the ASCR,, Czech Republic
P.M. Ossi
Affiliation:
Dip. Energia, Politecnico di Milano, Milano, Italy
*
Address correspondence and reprint requests to: L. Gemini, FNSPE, Czech Technical University in Prague, Brehova 7, 11519, Prague, Czech Republic. E-mail: [email protected]

Abstract

Surface periodic structures are generated upon irradiation of a silicon carbide (SiC) thin film by the plasma produced by 40 fs pulses from a Ti:Sapphire laser focused onto a thick low density polyethylene (LDPE) foil facing the SiC film. Independently of the number of laser pulses applied, these structures, with average regular periodicity of 710 nm, are evident throughout all irradiated areas. We attribute their formation to the efficient coupling of the unfocused femtosecond laser pulse with the incoherent extreme ultraviolet component of the laser-generated LDPE plasma.

Type
Research Article
Copyright
Copyright © Cambridge University Press 2013 

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References

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