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Proceedings Paper

Femtosecond laser induced surface instability resulting in self-organized nanostructures
Author(s): Juergen Reif; Florenta Costache; Olga Varlamova; Sebastian Eckert
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Paper Abstract

The fundamental mechanisms and dynamics of laser ablation are reviewed, based on experiments with femtosecond laser pulses to exclude secondary effects like the interaction of the incident laser light with the ablation plume or with a target preconditioned during the initial slope of the laser pulse. It is shown that the incident energy drives the target into a state of instability, far from thermodynamic equilibrium. The subsequent ultra-rapid relaxation results in the formation of self-organized regular nanostructures in the irradiated and ablated area.

Paper Details

Date Published: 25 April 2007
PDF: 8 pages
Proc. SPIE 6606, Advanced Laser Technologies 2006, 66060G (25 April 2007); doi: 10.1117/12.729580
Show Author Affiliations
Juergen Reif, Brandenburgische Technische Univ. Cottbus (Germany)
IHP/BTU JointLab. (Germany)
Florenta Costache, Brandenburgische Technische Univ. Cottbus (Germany)
IHP/BTU JointLab. (Germany)
Olga Varlamova, Brandenburgische Technische Univ. Cottbus (Germany)
IHP/BTU JointLab. (Germany)
Sebastian Eckert, Brandenburgische Technische Univ. Cottbus (Germany)
IHP/BTU JointLab. (Germany)


Published in SPIE Proceedings Vol. 6606:
Advanced Laser Technologies 2006

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