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Article Dans Une Revue Applied Physics Letters Année : 2014

Influence of crystal orientation on the formation of femtosecond laser-induced periodic surface structures and lattice defects accumulation

Xxx Sedao
Florence Garrelie
Jean-Philippe Colombier
Stéphanie Reynaud
Florent Pigeon
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Résumé

The influence of crystal orientation on the formation of femtosecond laser-induced periodic surface structures (LIPSS) has been investigated on a polycrystalline nickel sample. Electron Backscatter Diffraction characterization has been exploited to provide structural information within the laser spot on irradiated samples to determine the dependence of LIPSS formation and lattice defects (stacking faults, twins, dislocations) upon the crystal orientation. Significant differences are observed at low-to-medium number of laser pulses, outstandingly for (111)-oriented surface which favors lattice defects formation rather than LIPSS formation.
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Dates et versions

ujm-01011953 , version 1 (25-06-2014)

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Xxx Sedao, Claire Maurice, Florence Garrelie, Jean-Philippe Colombier, Stéphanie Reynaud, et al.. Influence of crystal orientation on the formation of femtosecond laser-induced periodic surface structures and lattice defects accumulation. Applied Physics Letters, 2014, 104 (171605), http://dx.doi.org/10.1063/1.4874626. ⟨10.1063/1.4874626⟩. ⟨ujm-01011953⟩
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