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Adaptive control of femtosecond laser ablation plasma emission

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Guillermin, Mathieu [UCL] Liebig, Carl [Laboratoire Hubert Curien] Garrelie, Florence [Laboratoire Hubert Curien] Stoian, Razvan [Laboratoire Hubert Curien] Loir, Anne-Sophie [Laboratoire Hubert Curien] Audouard, Eric [Laboratoire Hubert Curien]

The influence of temporal pulse shaping on plasma plume generated by ultrafast laser irradiation of aluminum is investigated. Time resolved plasma emission spectroscopy is coupled with a temporal shaping procedure in a closed loop. The ionic emission is enhanced relative to the neutral one via an adaptive optimization strategy. The plasma emission efficiency in case of optimized and ultrashort temporal shapes of the laser pulses are compared, evidencing an enhancement of the ionization degree of the plasma plume. Simplified temporal shapes of the femtosecond laser pulses are extracted from the optimized shape and their corresponding effect on laser induced plasma emission is discussed.

Document type Article de périodique (Journal article) – Article de recherche
Publication date 2009
Language Anglais
Journal information "Applied Surface Science" - Vol. 255, no.10, p. 5163-5166 (2009)
Peer reviewed yes
issn 0169-4332
Publication status Publié
Keywords Femtosecond laser ; Plasma ; Pulse Shaping ; Thin film deposition
Links
Bibliographic reference Guillermin, Mathieu ; Liebig, Carl ; Garrelie, Florence ; Stoian, Razvan ; Loir, Anne-Sophie ; et. al. Adaptive control of femtosecond laser ablation plasma emission. In: Applied Surface Science, Vol. 255, no.10, p. 5163-5166 (2009)
Permanent URL http://hdl.handle.net/2078/124701