Application of a two-temperature model for the investigation of the periodic structure formation on Si surface in femtosecond laser interactions

Abstract : We consider the case of surface irradiation by a small number of femtosecond laser shots leading to the formation of surface ripples. To explain this effect, we propose a numerical model that accounts for the following processes: (i) interference of the laser irradiation with an electromagnetic surface wave propagating on a silicon sample; (ii) free carrier formation and laser energy absorption; (iii) energy relaxation and electron-phonon coupling. We perform numerical calculations taking into account the interference of a surface wave with laser; and present the obtained simulation results in order to explain formation mechanisms of the experimentally observed patterns
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Article dans une revue
Journal of Optoelectronics and Advanced Materials, 2010, 12 (3), pp.610 - 615
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https://hal-ujm.archives-ouvertes.fr/ujm-00530631
Contributeur : Tatiana Itina <>
Soumis le : vendredi 29 octobre 2010 - 15:18:38
Dernière modification le : mercredi 25 juillet 2018 - 14:05:30

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  • HAL Id : ujm-00530631, version 1

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Thibault Derrien, Thierry Sarnet, Marc Sentis, Tatiana Itina. Application of a two-temperature model for the investigation of the periodic structure formation on Si surface in femtosecond laser interactions. Journal of Optoelectronics and Advanced Materials, 2010, 12 (3), pp.610 - 615. 〈ujm-00530631〉

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