Femtosecond laser induced surface instability resulting in self-organized nanostructures

Juergen Reif; Florenta Costache; Olga Varlamova; Sebastian Eckert

doi:10.1117/12.729580

25 April 2007 Femtosecond laser induced surface instability resulting in self-organized nanostructures

Juergen Reif, Florenta Costache, Olga Varlamova, Sebastian Eckert

Proceedings Volume 6606, Advanced Laser Technologies 2006; 66060G (2007) https://doi.org/10.1117/12.729580
Event: Advanced Laser Technologies 2006, 2006, Brasov, Romania

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.

Citation Download Citation

Juergen Reif, Florenta Costache, Olga Varlamova, and Sebastian Eckert "Femtosecond laser induced surface instability resulting in self-organized nanostructures", Proc. SPIE 6606, Advanced Laser Technologies 2006, 66060G (25 April 2007); https://doi.org/10.1117/12.729580

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