Redistribution of a material at femtosecond laser ablation of a thin silver film
Abstract
Energy-dispersive X-ray microspectroscopy is used for the first time to quantitatively study the spatial displacement of the material of a 100-nm silver film irradiated by a single femtosecond laser pulse focused on a small spot in the diffraction limit. The silver mass distribution over radial cross sections is determined and matter balance is analyzed for the resulting radially symmetric submicron structures of a microcone with a nanospike with various heights and a through hole. Hydrodynamic processes and phase transitions inducing the melting of the film, motion of the melt, and its recrystallization within a focal spot are studied.
- Publication:
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Soviet Journal of Experimental and Theoretical Physics Letters
- Pub Date:
- December 2016
- DOI:
- 10.1134/S0021364016230077
- Bibcode:
- 2016JETPL.104..759D