On the Insignificant Role of the Oxidation Process on Ultrafast High-Spatial-Frequency LIPSS Formation on Tungsten - Archive ouverte HAL Access content directly
Journal Articles Nanomaterials Year : 2021

On the Insignificant Role of the Oxidation Process on Ultrafast High-Spatial-Frequency LIPSS Formation on Tungsten

, , , , (1) ,
1
Priya Dominic
  • Function : Author
  • PersonId : 1099177
Florent Bourquard
Stéphanie Reynaud
  • Function : Author
  • PersonId : 1099178
Arnaud Weck
  • Function : Author
  • PersonId : 1099179
Florence Garrelie
  • Function : Author
  • PersonId : 834080

Abstract

The presence of surface oxides on the formation of laser-induced periodic surface structures(LIPSS) is regularly advocated to favor or even trigger the formation of high-spatial-frequencyLIPSS (HSFL) during ultrafast laser-induced nano-structuring. This paper reports the effect ofthe laser texturing environment on the resulting surface oxides and its consequence for HSFLsformation. Nanoripples are produced on tungsten samples using a Ti:sapphire femtosecond laserunder atmospheres with varying oxygen contents. Specifically, ambient, 10 mbar pressure of air,nitrogen and argon, and 10−7mbar vacuum pressure are used. In addition, removal of any nativeoxide layer is achieved using plasma sputtering prior to laser irradiation. The resulting HSFLs havea sub-100 nm periodicity and sub 20 nm amplitude. The experiments reveal the negligible roleof oxygen during the HSFL formation and clarifies the significant role of ambient pressure in theresulting HSFLs period.
Fichier principal
Vignette du fichier
Dominic_Nanomat21.pdf (1.44 Mo) Télécharger le fichier
Origin : Publisher files allowed on an open archive

Dates and versions

ujm-03230418 , version 1 (19-05-2021)

Identifiers

Cite

Priya Dominic, Florent Bourquard, Stéphanie Reynaud, Arnaud Weck, Jean-Philippe Colombier, et al.. On the Insignificant Role of the Oxidation Process on Ultrafast High-Spatial-Frequency LIPSS Formation on Tungsten. Nanomaterials, 2021, 11, ⟨10.3390/nano11051069⟩. ⟨ujm-03230418⟩
20 View
34 Download

Altmetric

Share

Gmail Facebook Twitter LinkedIn More